While I dont think it has guaranteed legs (or fins, I guess) in Standard, thats mostly because I cant think of a deck that would want it
That isn't really the point
The trouble with demons is that theyre so expensive, so the best way to play with demons in EDH has always been to cheat a few in with a Krrik, Son of Yawgmoth deck or some kind of Shadowborn Apostle structure
Players created and popularised the Commander Format, but it supported by Wizards of the Coast
Synergy draw: If your deck cares about creatures, attacks, artifacts, enchantments, or graveyards, your best draw often lives inside that theme
Remove a +1/+1 counter from this creature: Add one mana of any color