mtg armageddon card MTGNexus Destroy all lands. Armageddon (Revised Edition) *CGC 8.5

It helps many a creature efficiently win combat while inflicting some damage on the opponent, and in this case youve even got a great shot at destroying a random artifact

Obuun, Mul Daya Ancestor At the beginning of combat on your turn, up to one target land you control becomes an X/X Elemental creature with trample and haste until end of turn, where X is Obuun's power

Sigarda, Champion of Light is an excellent human lord that can give you more humans when it attacks, while Sigarda, Heron's Grace gives your humans hexproof

Vraska, Betrayal's Sting is a flexible proliferate option that also acts as removal or a finisher, but personally I feel she's a bit overcosted at 5 mana minimum

All of these ideas come from my teeth-related nightmares, hope it all comes through