Mono-White has been a punchline in the Commander community for quite some time, and while this card does not fix whites main issues (lack of card draw and mana ramp), it does give it an inexpensive, combo enabling commander
Strong Voltron commanders solve the archetype's core weakness: card draw
So this one is a tie
The option to crack the battle card and transform it becomes optional, and only done if strategically viable
If you can find ways to untap and tap Sanwell multiple times, like with Puppet Strings, you can keep the card advantage flowing
There are a few exceptions to this, like Eldrazi Repurposer, Glaring Fleshraker, Writhing Chrysalis (god, I hate this card in Limited), Spawn-Gang Commander, Emrakuls Messenger, and Drowner of Truth