Water has an ungodly amount of support, and Articuno decks are still rock solid but I haven't played in a while
I then used this [On Play] effect to negate its effect
Mana produced by Creeping Peeper's activated ability can be used to pay morph or disguise costs when turning a face-down permanent face up or to pay costs associated with turning a manifested or cloaked permanent face up
Falkenrath Exterminator, Constable of the Realm, Triskelion, Swords to Plowshares, Inscription of Abundance, Dromoka's Command, Return to Nature, Generous Gift, Ion Storm 9 targeted removal
While its story might not be particularly groundbreaking, its gameplay is a real treat
See cards like Karns Temporal SunderingKarns Temporal Sundering or Nexus of FateNexus of Fate for more information on Wizards of the Coasts recent extra turn spell design philosophy