mech deck mtg commander Shorikai, Genesis Engine Vehicles Pilots Artifacts Magic – CommanderComplete Flying Whenever Mobilizer Mech becomes crewed Optimus vs. Megatron: Transformers Commander

Once a creature you control has become blocked, reducing its power to 2 or less and/or increasing the power of the creature blocking it to 3 or greater won't cause it to become unblocked

Though this is not a lot of mana, getting one mana for free can be the difference between winning and losing

It's worth at least one fight per turn if you achieve a formidable board state, and it's a perfect pairing with Bello, Bard of the Brambles

Discarding is also key in decks that want discards, like madness, or want stuff in the graveyard for various synergies

Time to Wrap It Up Serra | Illustration by Matthew D

Otherwise, its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle