mtg cards that let you take extra turns In general how good are allow to a an turn ? TIA 😊 Why is it so common

Invasion of Mercadia C-Tier: Basically the battle version of Bitter Reunion, except the ability to give all of your creatures haste is likely more of an upside than potentially flipping into a 3/3, which means this is probably just a worse version of a card that already exists

(Exile cards from the top of your library until you exile a nonland card with mana value 4 or less

Villains The TMNT villains also get their time in the limelight, with multiple iterations of some of the biggest villains the Turtles have had to go up against, as well as a few deep cuts that true fans can enjoy

Again, this doesn't violate the spirit of the Reserved List, but does show that Reserved List cards are a space Wizards is willing to step into every once in a while