
First strike, haste
Symphony of Pain — Whenever you cast a spell from anywhere other than your hand, this creature deals damage equal to that spell's mana value to target opponent.
Keeper of Secrets has 2 printings, first in Warhammer 40,000 Commander (2022). EDHREC ranks it #3,303 among Commander cards. It appears most in Abaddon the Despoiler decks (4,326 on EDHREC). 1 public deck on TCG runs it.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.