mtg cards that put your graveyard into your library Gather the Pack Gaeas Blessing Gaea's Blessing MTG - Time

Lord of Atlantis is an elite Merfolk that buffs other Merfolk and gives them Islandwalk

7 Ukkima, Stalking Shadow A Whale Of A Wolf Relationships are a tough act to balance, as evidenced by just how much Ukkima, Stalking Shadow carries their partnership with Cazur, Ruthless Stalker

#8 Energybending Decks that get hosed by Blood Moon can turn to this card out of the sideboard to get out from under it for a turn

There are also a lot of four power matters cards out there that can be triggered/activated on the warpand it triggers Greenshell

The Orzhov crusaders, led by the dark disciple Clavileno, bring the glory of Aclazotz to the surface dwellers

If poison-proliferate control takes off, this is a great way to remove creatures while furthering your ultimate win-con simultaneously, and that can make this a somewhat reasonable option but probably only for that kind of deck