Im always going to wait, Fatal Push a cost reducer if they cast one or Opt if they dont, and Thoughtseize after they spend another turn cantripping to maximize my odds of hitting a Gifts Ungiven or ruining their setup
I grew up surrounded by dogs and Ive experienced first-hand time and time again how caring and sweet they are
Combos Turn 5 ANYTHING You need Jhoira, two Timebugs, whatever you want to suspend, and 4 lands (it's a very specific situation, but it has happened to me with Ulamog)
Outside of that, it acts as an excellent equipment tutor for 6 mana
If you're interested in a large box for storing multiple decks, don't miss the Omnihive 1000+ Xenoskin
When this creature enters, if was spent to cast it, draw two cards, then discard a card