You do have options for monogreen mass removal, it's just generally expensive to get:
Ugin
All is Dust
Disk
Oblivion Stone
Vault

I mean, those would be the core of what you have, but Ugin and AID are very expensive cards.

Wort has the unique ability of fireball --> conspire to fork said fireball for extra pain.
Atarka, World Render does 12 commander damage. Not bad for a relatively cheap (money-wise) commander.

I'm much more into Temur commanders:
Riku
Animar
Maelstrom Wanderer
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Ash: Nice! Some great winnings there!