I think this is way better than people are giving it credit for in online reviews, since they say "Why spend mana or lose life to cast your foe's stuff in other decks you aren't built around?" This has little value to them, and I couldn't disagree more, let's look at why
Hazel of the Rootbloom is a token enabler within the Squirrel Away Commander deck
Then, if Mirri is tapped, your opponent cant attack you with more than one creature
Whatnot Whatnot is a little bit different than most platforms, and Ive never engaged with it myself, so Im a little wary to give it a full recommendation
But you can comfortably just discard the off-color effects to hand size without much worryor even as a synergy engine all its own with cards like Inti, Seneschal of the Sun and other discard payoffs
Wishclaw Talisman In a traditional environment, you only give this away when you use it, so you can tap and use it to Demonic Tutor your hand, and then send it over