Heliod, the Radiant Dawn / Heliod, the Warped Eclipse Heliod, the Radiant Dawn brings enchantments back from your graveyard and sets you up for a flip into Heliod, the Warped Eclipse, a flash-speed Phyrexian god who discounts your spells based on how many cards your opponents have drawn
Iona, Shield of Emeria Iona, Shield of Emeria used to be one of the nastiest reanimation targets in Commander and Legacy
You can even turn cantrips like Opt and Consider into hyper-discounted Divinations
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Even if one of your opponents casts only two or three spells, it will be enough to disable practically all your opponents' commanders