Since it takes so many counterspells, removal spells, and planeswalkers to keep the game in check, there often isnt much space in the deck for creatures
Call to the Kindred seems like the perfect fit for a deck like this provided you can make it around to your next turn with it still enchanting one of your Slivers
(2023-06-16) If the Ring tempts you but you can't choose a creature as your Ring-bearer (probably because you control no creatures), Call of the Ring's last ability won't trigger
If you do, this attack does 150 more damage
If Leafkin Avenger leaves the battlefield while its last ability is on the stack, use its power as it last existed on the battlefield to determine how much damage it deals
MTGs art team will also follow updated creative guidelines for new Rakshasa creatures that decouple the shapeshifting creatures featured in Hindu mythology from their common portrayal as large, anthropomorphic cats - most often lions and tigers