All in all, I think this card could certainly see play as a top-end for aggressive decks, as he can very quickly end a game, if left unchecked
Of course, Lorcana is relatively new as far as TCGs go, and the enticing power of a Disney IP has many folks new to the hobby looking to pick it up
Belle Mechanic Extraordinaire from the Ruby/Sapphire starter deck gets an upgrade with an expansive view of the island and its maze
$25 Upgrade +1/+1 Counters is a very deep archetype so there's more sweet upgrade options that I could ever hope to cover, but I selected some of my favorites: for protection I've added Bulwark Ox and Mutational Advantage, a bunch of proliferates with Metastatic Evangel and Dreamtide Whale being the two best, ramp got a massive upgrade with Astral Cornucopia / Kami of Whispered Hopes / Purestrain Genestealer / Summon: Fenrir, and so on
Umbral Collar Zealot Free sacrifice outlets are strong in the right deck, as these can enable several combos or Blood Artist triggers