When Bane of Progress enters the battlefield, destroy all artifacts and enchantments. Put a +1/+1 counter on Bane of Progress for each permanent destroyed this way.
T: Add one mana of any color in your commander's color identity.
+2: Create a 1/1 green Elf Druid creature token with "Tap: Add G."
−2: Destroy target artifact or enchantment.
−6: Draw a card for each green creature you control.
Freyalise, Llanowar's Fury can be your commander.
You don't lose unspent green mana as steps and phases end.
Omnath, Locus of Mana gets +1/+1 for each unspent green mana you have.
Untap all permanents you control during each other player's untap step.
T: Add CC.
At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.
Search your library for a creature card and reveal that card. Shuffle your library, then put the card on top of it.