zero cost mtg cards mana=0 you lose the game Zero Point Ballad - Edge

15%inclusion 15%synergy 106 decks 686 decks Shuri, Wakandan Inventor 10%inclusion 9%synergy 73 decks 719 decks Damocles Base, Sword of Kang 8.1%inclusion 5%synergy 51 decks 628 decks Ultron, Artificial Malevolence 7.6%inclusion 6%synergy 54 decks 708 decks Loki, Lord of Misrule 4.3%inclusion 2%synergy 28 decks 653 decks High Synergy Cards Exterminate

So it would make sense that Kindred Boon's ability to make all your tribal creatures indestructible can be very powerful

Obviously you can also just be a total luck sack and tutor up your Reanimate effect and discard the fatty you want to recur from your hand on turn one for the easy mode win

Yep, they do