Other abilities are used on many different cards
There are Commander decks, more boosters than you can shake a six-shooter at, and the usual bundles
Priest of Forgotten Gods Requiring two pieces of sacrifice fodder makes Priest of Forgotten Gods one of the costlier sacrifice outlets around, but its well worth the high entry fee given the incredible trifecta of mana, card draw, and interaction
The Merfolk guy has two abilities, both are static
Much like the many vehicles in Aetherdrift , I think well mostly value the ones that have good abilities before they become stationed and not the ones that are just raw stats
Despite not being as flashy as some other cards, Aegar has overperformed for me