mtg omnath locus of rage commander deck Omnath, Omnath deals 3 damage to target creature or player. What are must-have cards for

By searching up Dryad Arbor on turn one, Green Suns Zenith could provide early mana advantage which was difficult to come back from

I also wanted to mention that Mana Crypt is in the Special Guests sheet for this set, which will hopefully make it a little bit easier to grab one

For four mana, you get a 4/4 that lets you sacrifice a creature on attack to add Red mana equal to its power

Ghost Quarter Rogue's Passage Reliquary Tower Waterfront District Various Blue/Black Lands Cycling Lands

Preventing blockers can enable significant damage to go through, deflecting a targeted spell can handle problematic permanents, and at worst, you can destroy an artifact