have fun with this

[KaVu_LoRd]

i should be a black discard creature, because i play my kavues, and i am the lord of all kavu

 

[Cateran Emperor]

Soooooooo...are you asking us to create a Kavu that forces discards? I'll give it a go:

Devouring Kavu
2RB
Creature - Kavu
Whenever Mindwarp Kavu deals caombat damage to a player, that player chooses and discards a card from their hand.
Sacrifice Devouring Kavu: destroy target creature or land.
2/3
And in the end, it bit off more than it could chew...

 

[K9Archmage]

Kavu Prostitute 2rb
summon kavu

when kavu prostitute deals damage to player, that player discards a card from his hand or pays kavu prostitue $5.

3/3

It's willing to bargain...