While its difficult to turn into a creature, all you really care about here is that second ability
They tell him that the bell is guarded by a great beast - an adamantoise - which the party defeats and is able to progress through the game
(2025-06-06) Due to a rules change that takes effect with this release (see below for details), a Saga that somehow loses all of its chapter abilities will not be sacrificed as a state-based action
Then when it dies and comes back once with persist, another 1 damage is dealt, possibly being a two for one if you kill one X/2 or less first and one X/1
That led to it becoming a staple in many popular decks thanks to the ultra-powerful Badgermole Cub from the Avatar: The Last Airbender set, which doubles its mana output
1 Collector Booster Sample Pack 1 Reference card 1 Deck box In French, German, Italian, Spanish, and some English printings of the Scions & Spellcraft and Scions & Spellcraft Collector's Edition Commander decks, the card Sage's Nouliths was replaced with the card Sahagin