Hi, do you have to send a "Crystal Beast" monster, that isn't in your S/T-Zone, from your field to the Graveyard to activate the third effect of Ancient City - Rainbow Ruins? "...3+: You can send 1 "Crystal Beast" monster you control to the Graveyard to negate the activation of a Spell or Trap Card and destroy it. ..."
Answer:
"You can send 1 "Crystal Beast" monster you control..."
If a "Crystal Beast" is in your Spell and Trap Card Zone... it isn't a monster anymore. It is a Continuous Spell Card. You must send 1 "Crystal Beast" monster you control, so it needs to be a monster in your Monster Card Zone.
This one can catch you off guard.
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Curtis Schultz
Official UDE Rules Dude
CurtisSchultz_Netrep@Hotmail.com