pokemon arceus trainer card - Arezu Pokémon Card Database - Arceus

This card is primarily the reason why youre so restricted on what non-blue cards you can play (Force of Will being a distant secondary reason), so your hands are a little tied in the deckbuilding process, but again, your options are pretty low here

Whether he's questing to recapture his lost throne or wading into battle, he keeps an eye on safeguarding his charges and building them a better future

Between this and the fact that blacks best mana ramp spells only tend to thrive in specific niches of the Commander format, such as cEDH, mono and two color black decks, combo decks, and/or builds with reliable access to Urborg, Tomb of Yawgmoth, theres really no way to rank these cards

And finally, you can, of course, respond to the sacrifice trigger

Parallax Tide, Parallax Wave, and Opalescence allow us to generate infinite landfalls (remove lands with tide, remove tide with wave, remove wave with wave, recycle - this also generates infinite mana since you can tap the lands as they enter)

This is actually surprisingly easy if you employ a few type-changing tricks again