It makes sense to have an effect that destroys your opponents flying creatures while sparing your own
Here are some good ways to descend consistently at every turn: Scion of Halaster A great conditional mill thats only going to throw away cards while your commander is out, which is going to get you some added value when your commander is not on your board
Legendary Creature - Vampire Dinosaur Gishath, Sun's Avatar Vigilance, trample, haste Whenever Gishath deals combat damage to a player, reveal that many cards from the top of your library
This remarkable collection features a total of 42 stunning cards that promise to elevate any card game experience or collector's display
Enchantment - Aura Color tag templates(None) Tainted Aether Whenever a creature enters, its controller sacrifices a creature or land of their choice
I am generally happy to play two although one is optimal