CONTAIN!

[Trap Card]

(This card is always treated as a "Rescue-ACE" card.)
If you control a "Rescue-ACE" monster: Target 1 Effect Monster your opponent controls; this turn, that Effect Monster cannot attack, also its effects are negated. If you control "Rescue-ACE Hydrant" at resolution of this effect, that monster also cannot be used as material for a Fusion, Synchro, Xyz, or Link Summon this turn.

MAZE OF MILLENNIA