ERRANT AND GIADA When Giada transformed into a wave of holy light, she set into motion the awakening of the angels of New Capenna
The same is true for counters that change its power or toughness (such as +1/+1 counters) and effects that switch its power and toughness
I think there might also be an option for a five-color turbo Ad Nauseam deck in cEDH featuring Food Chain lines and the other usual suspects for turbo win conditions
If both of your targets are creatures you control, this ability only costs one green mana to activate
$0.35 Lurking Deadeye Ikoria: Lair of Behemoths $0.35 Final-Sting Faerie Morningtide $0.35 Vraska's Finisher War of the Spark $0.35 Gixian Skullflayer The Brothers' War $0.49 Merciless Harlequin (Starter Kit) Universes Beyond: Assassin's Creed $0.49 Shadow, Mysterious Assassin Final Fantasy Commander Decks $0.35 Brotherhood Ambushers (Starter Kit) Universes Beyond: Assassin's Creed $0.35 Thorn of the Black Rose Commander Masters $1.99 Witch's Cottage Throne of Eldraine $0.35 Unscrupulous Contractor Outlaws of Thunder Junction $0.35 Brotherhood Patriarch (Starter Kit) Universes Beyond: Assassin's Creed $1.99 Altair Ibn-La'Ahad Universes Beyond: Assassin's Creed 0 results found
5.Altar of Bhaal While its no Recurring Nightmare, Altar of Bhaal offers us a neat way to get some repeated recursion into our decks in a similar vein (note, Recurring Nightmare is banned in Commander)