Cultivate and Skyshroud Claim are more expensive options that provide additional value, all of which are found in abundance in Commander
Her combination of extremely resilient body combined with the dual threats of tokens going wide or a single giant, flying threat killing you quickly, has made her a top tier choice in basically every format since her inception
Take this Tapu Lele for example
Whether you protect a key threat from removal or set up an unexpected blocker, these tricks do a lot for just 1 mana
Decks that want to draw cards with Fact or Fiction are very unlikely to also be able to optimally use a Skullclamp, decks that have the mana to bust out a five or more mana draw spell are similarly unlikely to also want to use the economic but slow Ancestral Visions
Still, no good typal strategy is complete without a few dedicated lord creatures, and the +1/+1 from Immerwolf is all it needs to really justify itself in a Wolf deck