If you play with the same people often enough, analyzing the metagame in your play pod is also useful for determining how much card draw you need
10 Sword Of War And Peace You Can't Have Both Giving a creature protection from red and white is another great way to avoid your creature being the target of a good chunk of removal in Magic
If Pinnacle Starcage leaves the battlefield before its first ability resolves, no artifacts or creatures will be exiled
Sure, it's more limited than Enchantments like Mesa Enchantress above, but with three options, you have three deck types he can lead - Equipment, Auras and Enchantments are all in the top 15 archetypes
4 Thallid Shell-Dweller There's aren't a lot of Walls that can kill you if left unchecked
If you do, return each other card exiled with this artifact to its owners graveyard