If you want to get obnoxious, Raff plays well with Rule of Law effects like Arcane Laboratory and Deafening Silence since you can always play your spells on your opponents turns for four spells a turn cycle while theyll often be stuck at one, maybe two
Sliver Hivelord The main weakness for MTG slivers is board wipes
Commander Text: You dont lose unspent green mana as steps and phases end
Legendary Creature - Druid Merfolk Color tag templates(None) Thunderous Snapper Whenever you cast a spell with mana value 5 or greater, draw a card
Kotis, the Fangkeeper Kotis, the Fangkeeper does need to get combat damage through, and while it is not evasive, indestructible goes a long way in making this an incredible voltron commander that ends up playing lots of different cards once it connects
Even at just 2 mana, direct burn is direct burn, and since this can hit any target, it can also get rid of a Planeswalker in a pinch