
Flying
You don't lose unspent red mana as steps and phases end.
When this creature dies, you may pay any amount of {R}. When you do, it deals that much damage to any target.
Leyline Tyrant has 7 printings, first in Zendikar Rising (2020). EDHREC ranks it #2,281 among Commander cards. It appears most in Fire Lord Zuko decks (8,219 on EDHREC). 2 public decks on TCG run it. It has 4 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.