If you have a good idea, you have to practice and verify it, and Qingyin is preparing for this at the moment.

Since it has been decided that the Heroic Spirits with full combat power, or even the Heroic Spirits that have been strengthened by Qingyin again, become the bodyguards of their families, how to reduce the energy consumption of summoning and maintaining cards is a technical problem that must be overcome.

In this regard, Qingyin already has a relatively mature idea.

He looked at the remaining kika in his hand, thought for a moment, and began the experiment.

There are still a lot of low-level base cards below three stars that he bought before in order to deceive him, but there are only three types of summoning type, skill type and armed type, and Leia gave him more types of medium-level base cards, except for the rarer base card types, the more commonly used types are all prepared, but he has used a lot of them himself, of which the six-star one is only the last summon type, and the other four- and five-star types are no more than three.

Although there was a large area spread on the floor in front of him, it seemed to be a lot, but it was actually not much, but he was only going to experiment with his ideas today, and these should be enough if he saved them.

"If you want to summon a complete state heroic spirit with a high-level treasure, then at least they are all seven-star level summoning cards, then the consumption when summoning must be a lot, ······in this case, the first is the card used to reduce the consumption of mental power at the initial summoning, well~~, what should be the benchmark design?······ With ······"

Pick up a skill card, please close your eyes and start drawing, a moment later, a card engraved with a complex magic array was successfully drawn, Qingyin's eyes lit up, and he couldn't wait to see the effect:

Three-Star Skill Card - Heroic Spirit Descending Magic Array: Consumes 800 points of spiritual power, designates any Heroic Spirit series summoning card in the same system ring, reduces its initial summoning consumption by 10%, and has a cooldown of three hours.

After reading the effect, Qingyin frowned, this effect did not meet his psychological expectations, consuming 800 points of spiritual power can only reduce the initial summoning of a heroic spirit card by 10%, such an effect is really not outstanding, assuming that the initial summoning of a seven-star level heroic spirit requires 20,000 points of spiritual power, and the use of this card consumes 800 points, a decrease of 10%, that is, two thousand points, saving 1200 points of spiritual power, although this is not a small amount, but it is not much for the overall consumption, far from meeting his requirements.

"Is that all there is to it in exchange for an extra card slot? It's not very cost-effective~, maybe you can reduce the level of the skill card and reduce the cost of skill use······"

Unwillingly, Qingyin drew again with the same idea, but the result was still unsatisfactory.

Two-Star Skill Card - Heroic Spirit Summoning Magic Circle: Consumes 500 years of spiritual power, designates any Heroic Spirit series summoning card in the same system ring, reduces its initial summoning consumption by 8%, and has a cooldown of two hours.

One-Star Skill Card - Summoning Array: Consumes 300 years of spiritual power, designates any Heroic Spirit series summoning card in the same system ring, reduces its initial summoning consumption by 5%, and has a cooldown of two hours.

"If you use it at the same time, you can really save a lot of energy, but your parents are not congenital card masters, and there are only a few card slots on the wrist machine, and it's too wasteful to put this kind of card in it, and the reduced consumption is not a lot, it's still not cost-effective······ and then change your thinking?"

Qingyin scratched his head in annoyance, picked up a four-star armed bearing card and drew it······

Four-Star Armed Card - Blowing the Horn of the Epic Song: The initial summoning consumes 2,000 points of spiritual power, and when this card is activated, the consumption of the Heroic Spirit card is reduced by 12%, and the mental power consumed to maintain the existence of the Heroic Spirit and use the card effect after summoning is also reduced by 5%.

"It's a little better, but it's not enough, come back ······"

Three-star summon card - Epic Singer: Humanoid creature phantom beast, consumes 1,200 points of spiritual power to summon a support life with no attack ability, when the summon exists, the initial summon consumption is reduced by 10% when summoning the Heroic Spirit series cards, the maintenance consumption is reduced by 10%, and the effect is reduced by 10%, and the effect disappears when this card is destroyed, and the cooldown time is one day.

"It's still about the same~, and besides, summons with no attack power are too easy to destroy, right? Do I want my parents to protect it in turn? And it's not convenient to have a cumbersome job around, no, no······"

Having once again rejected the idea of a support creature card, Qingyin paused to think about it again, and after a long time, a new idea flashed in his mind:

"Maybe it doesn't have to be universal for all Heroic Spirits, wouldn't it be better to save money if it only targets one Heroic Spirit? It's like a weapon replacement backpack for a pulse mech, aren't those cards just amazing? Anyway, it should be enough for parents to have a high-level Heroic Spirit Card for personal protection! ”

Thinking of this, Qingyin felt that it was very feasible, so he picked up Kika again and began to experiment······

One-Star Summon Card - Relic - Ancient Serpentskin of Babylonia: Item-type Summon Card, Heroic Spirit Card - (The Ancient King: Gilgamesh) Special Support Card, consumes 500 points of spiritual power to activate this card and use it as a sacrifice, reducing the initial consumption of summoning (Ancient King Gilgamesh) by 50%, reducing the cost required to maintain the existence of the Heroic Spirit by 30%, and the cooldown time is one day.

"This is it!"

Qingyin couldn't help but clench her fists and shouted excitedly, this line of thinking is really right, if you reduce the summon cost by half and the maintenance cost by 30% and use it with other support cards, it is no longer a problem to use the high-level Heroic Spirit card as a regular card.

Even if it's just a lower-level energy card, if you save a little bit of it, you can maintain the heroic spirit for a long time, and you won't have to switch energy cards at every turn, resulting in loopholes, so that the personal safety of your parents is guaranteed.

Even though the high-level carrier base card has not yet arrived, and the Heroic Spirit Card has not yet been drawn, it has proved that the method is feasible, and Qingyin is also relieved.

"Then use the same idea to reduce the consumption during battle, and the problem with the support card will be solved, and when the base card is in hand, you should be fine if you make some effect changes when drawing the Immortal card······"

Thinking so, Qingyin drew the support cards to use in battle;

One-Star Skill Card - Master Spell: Consume 900 points of mental power to obtain a support effect that can be used three times, designate a Heroic Spirit in a state of maintenance, and halve the mental power consumed by the next additional consumable attack, and after three effects, this card enters a cooldown, and the cooldown time is three days.

Finally, looking at the series of auxiliary cards drawn in this experiment, Qingyin was very satisfied, and even a little proud, and couldn't help but think about it in his heart:

With this method, wouldn't high-level Heroic Spirits be able to summon in groups? Hehe~ I suddenly began to feel that the heroic spirit was not enough~, it seems that it is time to DIY more heroic spirits, it is best to collide with other mythological systems more, and make some heroic spirits full of compelling ······, yes, you have to do it! Anyway, in the last few days, it is also necessary to build a mythological system, which is the best of both worlds!

As soon as the inspiration erupted, Qingyin's spirit was excited again, and his heart was full of pride:

As soon as Kika arrives, I'll get a few enhanced complete Heroic Spirits first, one for the whole family, and take it with me as a bodyguard, and usually let them help with some housework or something, it's cost-effective and stylish, and the force can't be higher! It's really interesting to think about~hehe~

If the poor Heroic Spirits knew what he was thinking, they would probably cry~

It's a pity that Qingyin shouldn't let them go, he is deeply trapped in the low-key luxury of the high-end life in the future and can't extricate himself, and he can't help himself when he thinks that it is possible to realize his dream of being an otaku on Earth in his previous life.

His dream is very ordinary and normal, I believe many otaku have similar dreams, that is-a dumb hairy knight king maid!

The stupid hair in a maid's costume is true love!

Thinking of this, he stood up suddenly, picked up a one-star base card, and began to draw with excitement on his face:

"Prepare now! Relic of the Knight King Artoria Pandoragon! A symbol of holiness and nobility - the golden silly hair of the Maiden Knight King! ”

In the eager gaze of the soul of the dead house, a trace of golden image gradually appeared on the card in his hand, and then ······

······ There was a faint spark······

Qingyin was stunned for a moment, then returned to his calm demeanor, and threw away the card casually with a bored face:

"······, sure enough, how can such a thing be drawn into a card ······, the girl's stupid hair or something, it's really good to be a spiritual symbol······"