All those zombies entering the battlefield are great, but if I've got Kindred Discovery in play, I'll draw a card whenever one of them enters the battlefield or attacks
Creature - Cat Color tag templates(None) Kitt Kanto, Mayhem Diva When Kitt Kanto enters, create a 1/1 green and white Citizen creature token
I did look at Event Deck, Duel Deck, and Commander cards that I had
Then there are cards that ask you to sacrifice a permanent or enchantment as a cost, something black has quite a bit more of
Your spells are very low cost, so I don't see how Llanowar Elves are needed, try to get off them and use 4 Bassara Tower Archer, it seems she works a lot better than the troll, due she's constant hexproof and keeping good your green devotion