Once Halo Fountain is on, its easy to start pumping out creatures or drawing extra cards, seeing as white has fewer options for card draw
Thats also the same collection of creatures that comprised Pokmon Gos launch roster, likely in an effort to attract that same audience back to the franchise yet again
I just think these downsides make it much less promising as a commander and a better card to have in your main decks instead
You'll want to have: Training GroundsTraining Grounds Omen HawkerOmen Hawker James, Wandering DadJames, Wandering Dad The Enigma JewelThe Enigma Jewel If you're running mostly Islands you can even run High TideHigh Tide to set up that one big turn
If they choose to do so, that forces the opponent to also banish one of their own characters
The summon gives you a few one-shot benefits on top of the front faces surveil and lifegain, then it overruns your board before it goes away permanently