The former Active goes to the Bench, keeping any damage and any remaining attached cards that were not discarded to pay the Retreat Cost
Instead, Veil of Summer is effectively a counterspell in green
Full disclosure, this deck has no actual Bats in it, because the only Commander-playable Bat-related card (Regal BloodlordRegal Bloodlord) ended up being a terrible fit
(Choose any number of permanents and/or players, then give each another counter of each kind already there.) Legendary Creature - Human Cleric Draw (CTRL to add secondary) Evasion Evasion (CTRL to add secondary) Land Urza's Saga (As this Saga enters and after your draw step, add a lore counter
II, III and IV Add R for each lore counter on this Saga
Your deck's success depends on the synergy between your Pokemon and each cards individual strength in battle