Theres a cycle of lands in the upcoming Bloomburrow that each offer bonuses for four separate animal creature types
If you can trigger an EtB ability every single turn, the best option in the deck (even better than Karumonix in the right situation!) is the rather unsuspecting Chittering Rats
Let the weak react to me." Kamahl, pit fighter Artist Darrell Riche Set OD - Odyssey Number 214 Language English printings (0) view Legal Formats Commander, Legacy, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Modern, Pauper, Pioneer, Standard, Timeless
Shards of Alara
I think this card is perhaps the most actually extreme one on the list
You can take another leaf out of cEDHs book and repurpose it: create a primer for your deck