At the beginning of your draw step, you draw additional one card, remove two time counters from Night Owl. Your maximum hand size is equal to the number of time counters on Night Owl. Whenever you discard a card, you lose 1 life
We saw this when Ragavan was also on the Multiversal Legends bonus sheet
Quilled Greatwurm Rarity: Mythic Rare TYPE: Creature SUBTYPE: Wurm CMC: 6 Mana cost: USD: $4.72 EUR: 4.90 TIX: 0.02 EDHREC RANK: 2324 (7/7) Trample Whenever a creature you control deals combat damage during your turn, put that many +1/+1 counters on it
All of your cards generating Saprolings are improved so much by this and all of your thallids also happen to get pumped up
Low Value, High Utility Fleshbag Marauder Solemn Simulacrum Wonder Mulldrifter Sign in Blood Cultivate Fact or Fiction Dimir Signet Golgari Signet Simic Signet Including Command Tower and Sol Ring, we have 20 cards that can be used elsewhere, tying it with Political Puppets for first place in that category