Elves Plays like: Slivers, Elementals, Pirates Elves are perhaps the most successful and powerful typal deck across Magic history, with a consistent presence in the metagame of tournament formats
Altanak costs seven mana to play, which is a lot, but another card in Duskmourn, Say Its Name, requires only two mana
Vexing Scuttler can get either one back if thats relevant, so I dont see a need for more than one
Magic: The Gathering can be an intensely competitive game that attracts chess-player minds to sling spells against one another in international tournaments
Its difficult to find balance with sweepers, as they have a way of either ending the game on their own or not mattering much at all, with games where they fall somewhere in-between being rarer than either extreme