Murktide Regent - [Foil, Promo] Secret Lair Showdown (SLP) V13 return Prized Amalgam from your

return Prized Amalgam from your graveyard to the battlefield tapped at the beginning of the next end step

Islandwalk

"You may triumph on the field

Whenever another nontoken Elf is put into your graveyard from the battlefield

Murktide Regent - [Foil, Promo] Secret Lair Showdown (SLP) V13 return Prized Amalgam from yourDelve (Each card you exile from your graveyard while casting this spell pays for {1}.) Flying Murktide Regent enters the battlefield with a +1 +1 counter on it for each instant and sorcery card exiled with it. Whenever an instant or sorcery card leaves your graveyard, put a +1 +1 counter on Murktide Regent.