The Curtains even survive a Wrenn and Six ping after blocking, and the threat of transform activation helps mitigate their Lurrus in mirrors with a proactive card
So you need to end up in situations where the 3 damage either wins you the game or you take down an important creature, but a lot of the time their important creature will be attacking you
Rot Hulk Rot Hulk is both obscure and expensive (over $30 before its Mystery Booster 2 reprint!)
Brawl Products Brawl benefits from every Magic set released on Arena, including small releases like Historic Anthologies
What they're not good at, though, is actually doing something with those squirrels
Creatures (21) 3 Drana, Liberator of Malakir 3 Indulgent Aristocrat 4 Scrapheap Scrounger 3 Weaponcraft Enthusiast 4 Syndicate Trafficker 4 Night Market Lookout Planeswalkers (3) Lands (23) Spells (13) Dont get me wrong