It is slow but it helps as you also stack up a wildcard counter with every pack, which you can exchange for cards as soon as you unlocked a wildcard
The drawback is that if you target an opponents permanent, you gift them a tapped 1/1 Fish token
The original naming choice came from Spacegodzillas signature attack, which just so happens to be called the Corona Beam
#21 oh and here are some yard-cards Bladewing's Thrall - Simple, powerful, zombie creature type...what's not to love
As such this is almost exclusively used in more aggressive decks where you want a body and often (being blue) have a deficit of two drops
Last up is Akroma, Angel of Fury, a color-shifted version of Akroma, Angel of Wrath