Turning excess Llanowar Elves into answers like Reclamation Sage or Kogla, the Titan Ape or game-ending threats like Craterhoof Behemoth makes this incredibly valuable in any creature-based toolbox strategy
They are still creatures, sorceries, artifacts, etc
You should also clean your Play-Mats regularly, preferably by hand washing (and not in the washing machine!): wash the play-mat with warm water and a mild detergent or soap, then spread it out to dry - that's it.
Yes, even Sheoldred, the Apocalypse
For the first time, every Commander deck has a newly designed Planeswalker that can also be used as a Commander
The 3/3 body is a tad small to risk regularly in combat, but you can always send your other Frogs (or changelings) to earn the trigger or just use one of the other spells from this list 11