SKD Starving Venom
2 DARK Pendulum Monsters
Must be either Fusion Summoned, or Special Summoned by Tributing the above cards you control (in which case you do not use "Polymerization"). Once per turn: You can target 1 other monster on the field or in the GY; until the End Phase, this card's name becomes that monster's original name, and replace this effect with that monster's original effects, also for the rest of this turn, if your monster attacks a Defense Position monster, inflict piercing battle damage to your opponent.
Mist Valley Apex Avian
When an effect is activated, you can select 1 face-up "Mist Valley" card you control. Return that "Mist Valley" card to its owner's hand, negate the effect's activation, and destroy the card whose effect was activated.
El SKD Starving Venom se devolvería al Extra Deck creo, y se acabaría ahí el efecto, sin negar ni destruir?
http://yugioh.wikia.com/wiki/Supreme_Ki ... ving_Venom