mtg arcane secret lair cards Signet (Secret Drop) Plains (#484)

Queza, Augur of Agonies often sees at least some wheels in its lists, but you could run it like a group hug commander with Howling Mine effects

This helps a lot with mono-greens removal issues

, , Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle

Most counterspells are blue cards, and specifically blue instants, as its what blue does best, but there are more than a few playable off-color counterspells

Since it lets you cast a permanent with a mana value two or less from your graveyard, you can continuously use cards that need to sacrifice themselves to trigger