
{T}: Add {G} or {U}.
{G}{U}: This artifact becomes a 2/3 green and blue Crab artifact creature with hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)
Simic Keyrune has 2 printings, first in Gatecrash (2013). EDHREC ranks it #19,360 among Commander cards. It appears most in Zegana, Utopian Speaker decks (23 on EDHREC). 1 public deck on TCG runs it. It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.