mtg chaos incarnate commander deck or commander Kardur Doomscourge Foil Commander Magic:

She can either serve as mana ramp, creature removal, or, if you save up for her ultimate ability, you can deal 5 damage to any target every time you cast a spell, which is bound to win you the game quickly

Eldritch Evolution is well known among players from the Shadows Over Innistrad era, helping players pod up creatures with mana value two higher than the creature they sacrificed

While not foolproof, this will save you some grief at least 9 times out of 10

Gaining life and drawing cards is blue and white's general modus operandi, but the addition of affinity for artifacts means you could be playing this for as little as one white and one blue mana instead of the hefty usual cost

Decimator of the Provinces I think people sleep a bit on Decimator of the Provinces

Youll see it at cEDH tables occasionally