When facing Temur Roar, you have to follow up with one-two removal spells as soon as Ureni is cast
2Overkill
In the Jund version, I experimented with Horned KavuHorned Kavu and creatures that bounce other creatures back to hand to replay them and reuse their EtB
For three mana, Bruvac is a Blue 1/4 that simply doubles the number of cards your opponents mill when they do so
5 Nashi, Moon Sages Scion A cyberpunk Rat for a cyberpunk future Nashi, Moon Mages Scion is a Mono Black Control players dream
Pyrohemia lets you spend just one red mana to deal one damage to everything, your Dinosaurs included, triggering all their enrage abilities, picking off any creatures with at least one toughness, and slowly whittling away your opponent's life totals