ZephyrPhantom - Your card is very similar to my mechanic, but what isn't similar is that your card is a pillar, and constantly heals every turn if I have 10 gravity quanta and in intervals depending on how much gravity quanta I have.
Discord - I do feel as though your card is a unique idea. The cardinal elements in the game are entropy, aether, time, and gravity. Life is none of those items. Your mechanic is unique, but sadly, it doesn't share much of any similarities with my cards.
MeowMeowCat - Your card mirrors my card. Literally.
1st MeowMeowCat - Mirror image.
2nd ZephyrPhantom - Card was a spell, not a permanent
3rd Discord - Card's mechanics and design is different.