It has two moves which is always a plus, a free retreat cost, and is very quick
I tried to make him difficult to get out, and to the best of my knowledge, he cannot to be searched (though with a slew of new Vampire cards since I researched this, I may well be wrong), so I'm hoping it's not too far out there
Red (R) seeks freedom through action, and represents emotion, chaos, and destruction
Here you can whittle down cards by Commander mana colour identity, casting cost, actual cost, card type, a specific keyword you want on all of them or pretty much anything you can think of
He's a reliable payoff that'll consistently help attack your opponents or guard your own life
Casting Hydroid Krasis gets you to draw half as many cards as you put into the X cost, while also gaining half that much life