Specialize {2} When Gale, Conduit of the Arcane enters the battlefield, if you cast it, return target instant or sorcery card from your graveyard to your hand.
When Spine of Ish Sah enters the battlefield, destroy target permanent. When Spine of Ish Sah is put into a graveyard from the battlefield, return Spine of Ish Sah to its owner's hand.
When Dominating Vampire enters the battlefield, gain control of target creature with mana value less than or equal to the number of Vampires you control until end of turn. Untap that creature. It gains haste until end of turn.
When Sensor Splicer enters the battlefield, create a 3/3 colorless Phyrexian Golem artifact creature token. Golem creatures you control have vigilance.
When Merfolk Tunnel-Guide enters the battlefield, you get a three-time boon with "Whenever one or more Merfolk enter the battlefield under your control, target Merfolk creature you control explores."