Thanks for all the support ! Now I answer all those questions
Strictly one time use. You need to activate one with 1 
and the others will activate for free. It's simple mechanics.
This interpretation is correct. Thanks for the clarification.
Apologize if my wording causes any misunderstanding.
so as is, i would consider it a tad underpowered in most circumstances, but if you adjust it too much to be useful with 6 or fewer cards by simply increasing the amount healed, it could easily become overpowered with mitosis (or possibly fractal). i would suggest increasing the heal to 3 (basic) 4 (upgraded) and have it capped at 20 (basic) 25 (upgraded).
Fractal is indeed my major concerns. That's why I raised the cost to 3
.
A healing cap is a good idea. I think I know how to fix it.
most people do :p they were the most commonly farmed shard back in the t50 days. and this isnt all that much more useful than feral bond, anyway, aside from its ability to heal a single target, which is almost more of a drawback than a boon, in the end. i think the "all using skill together" mechanic has some potential, but i think there may be better ways of utilizing it than a 'somewhat similar to angel but variable heals and cant heal more than one target, and not as good as sog or feral bond when healing its owner' card
The concept of this card is based on the theme of life : "Abundance, diversity and interdependence of lives". This is why this card is a healing card.
Besides, this card is not made to replace the current healing techniques. This card serves as a additional healing source for stalling. You can combine it with Heals, SoG and Bonds, possibly with a mitosis for a Skogsra, giving your deck more stalling power.
Would this trigger enemy versions?
Nope
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New version is made ! The cost returns to 2
but now the ability has new limitation to restrict Fractal Spam.
