Tainted Aether is worth looking at, and I think its a card that actually should get more EDH play than it does, but I also know my capacity to make that happen is limited
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negate the Summon or activation, and if you do, destroy that card. Evolzar Dolkka During either players turn, when a monster effect activates: You can detach 1 Xyz Material from this card
The downside is, unless you actively want to be dumping your hand into the graveyard, you need creatures with high power in order to make Greater Good worth it
I personally really like the dopamine rush I get from hearing my phone go *cha-ching* a few times a day, so I often undercut (or get close to it) myself