Fatal Push efficiently kills Blazing Rootwalla, Marauding Mako, and Hardened Academic before they threaten to overwhelm you, all of which have mana value low enough to fall under its restriction. Spore Frog buys a turn against their explosive starts by preventing combat damage, giving you time to stabilize with Yawgmoth. Walking Ballista is weaker here since it can't scale fast enough to outpace their graveyard-fueled aggression, and Formidable Speaker is too slow. Watch for Vengevine returning from the graveyard after two creature spells in a turn; prioritize removing their smaller threats before they snowball.