The thing is, the creature isn't bolstering itself, it's just benefitting from its bolster ability
MAGIC MEETS THE LORD OF THE RINGSExperience the beloved story of The Lord of the Rings with the strategic gameplay of Magic: The Gathering, facing off against opponents in thrilling magical battles
2025-06-06 In some cases involving linked abilities, an ability requires information about "the exiled card." When this happens, the ability gets multiple answers
It's a huge piece with 18 new cards to pour over
Sterling Grove is another uncommon that is valuable to vendors especially since the Daxos deck, though lacking green, could sway players to start creating enchantment based decks with green in them since Magics history is full of great green cards that support enchantments
For example, if you control The Ozolith ("Whenever a creature you control leaves the battlefield, if it had counters on it, put those counters on The Ozolith.") when Sin's last ability resolves, you'll put the appropriate number of each kind of counter onto both The Ozolith and the target creature