Decadent Dragons Instant half gives you a shot at stealing your opponents best cards before they even draw them, and its creature side is a perfectly respectable flier with good stats and regular Treasure generation
If necessary, Austere Command can wipe out all artifacts or all enchantments
(A suspected creature has menace and can't block.) Whenever a creature you control with menace attacks, create a Treasure token
Legendary Creature - Wizard Merfolk Phyrexian Commander (CTRL to add secondary) Discard Discard (CTRL to add secondary) Drain Syr Konrad, the Grim Whenever another creature dies, or a creature card is put into a graveyard from anywhere other than the battlefield, or a creature card leaves your graveyard, Syr Konrad deals 1 damage to each opponent
How on earth are you supposed to navigate these menus
And well want hydra like Mistcutter Hydra and Voracious Hydra, making the +1/+1 counter theme plentiful and easy to manipulate with proliferate spells