These packs are Mono-White, so while there's definitely a few usual suspects not seen here, there's a lot of great stuff to work with
Milling someone for 10 cards almost always seems to help them out because almost every single Commander deck has ways to abuse the graveyard nowadays
Here, my opponents decision to cycle a shark in to block my Familiar was punished by this sequence: play second Oven, sac second Familiar to get my third food, reanimate Feasting Troll King, cast Great Henge for just two mana, tap it to cast Uro and trigger Henge, sac Uro to second Oven (with his triggers on the stack) for two more food, use food to reanimate both Familiars (two more Henge triggers)
This translates to Trelasarra growing whenever a creature enters the battlefield, which can get out of hand quickly when there are four players
I can see it happening, to be sure