name: Echo Chamber
originalText: {4}, ocT: Target opponent chooses target creature he or she controls. Put a token creature into play and treat it as a copy of that creature. The token creature is unaffected by summoning sickness this turn. At end of turn, remove the token creature from the game. Play this ability as a sorcery.
printings: TMP
text: {4}, {T}: An opponent chooses target creature they control. Create a token that's a copy of that creature. That token gains haste until end of turn. Exile the token at the beginning of the next end step. Activate only as a sorcery.
type: Artifact