I'd say definitely playable, and reanimating a big guy t4 and then copying it t5 by embalming the vizier feels reeeeaaaaally good
As detailed above, The List for BLB consists of cards from SPG.* 3 Uncommons 1 Wildcard of any rarity 1 Rare or mythic rare 1 Traditional foil of any rarity 1 Seasonal full-art basic land Spring 40% Non-foil 32%, traditional foil 8% Summer 30% Non-foil 24%, traditional foil 6% Autumn 20% Non-foil 16%, traditional foil 4% Winter 10% Non-foil 8%, traditional foil 2% 1 Non-foil token or art cardcan be any of the following: Ad/token card (65%) 54 Art cards (30%) 54 Signature art cards (5%) *Starting with Bloomburrow , de-archived cards, commonly known as The List cards, which feature the Planeswalker stamp in the bottom-left corner will no longer appear in Play Boosters
It does have an emphasis on creature-centric decks, but most green builds--including enchantments and especially modified--will have no shortage of creatures on the field
Even though Jumbo Cactuar gets ridiculously big once it attacks, whoever guards that escape tunnel apparently doesn't know that - and before combat, it qualifies