mtg card that makes all lands swamps Swamp (34) [Duel Decks: Phyrexia vs. the Coalition] Swamp (0281) - Lorwyn Eclipsed

Illustrated by Anton Solovianchyk Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp

8 Miraris Wake A real Commander classic, Miraris Wake provides two powerful effects in one spherical package: an Anthem effect for all of your creatures, and a mana-doubling effect for all of your lands

Power Fist Exxaxl: A card like this would usually be limited in utility because you need trample for it to work, but they actually put trample on the aura itself which seems wild

The boros variant that came to my mind works with Gargadon and Stuff like Rukh Egg, as well as with floating mana like Upheaval

1x Secret Victory card