
At the beginning of your end step, if you control no creatures with decayed, create a 2/2 black Zombie creature token with decayed. (It can't block. When it attacks, sacrifice it at end of combat.)
Jadar, Ghoulcaller of Nephalia has 6 printings, first in Innistrad: Midnight Hunt (2021). EDHREC ranks it #1,325 among Commander cards. It appears most in Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel decks (18,117 on EDHREC). 1 public deck on TCG runs it. It has 4 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.