Hydroid Krasis seems pretty strong
Browse Origins In Stock Buy This Product Light Play, English, 1 in-stock Sell This Product Extra Info Color: Blue Card Text: 1, Exile an instant or sorcery card from your graveyard, choose one: *Counter target noncreature spell unless its controller pays 2
Using a double flicker target spell, you can get back not just your flicker spell, but something else
The difference between Brawl and Commander is that Brawl is a oneonone format with a 25life starting total and a smaller card pool, while Commander is a fourplayer format starting at 40 life with access to all Magic cards and unique rules like commander damage
Room for dice and counters
If a card with Adventure is exiled for any reason other than being cast as an instant or sorcery, you're unable to cast it out of exile