Amonkhet Standard any deck shennanigans

Enchant player At the beginning of enchanted player's first upkeep each turn, that player gets an additional upkeep step after this step.

: Target opponent chooses any number of creatures they control. During that player's next turn, the chosen creatures attack if able, and other creatures can't attack. At the beginning of that turn's end step, destroy each of the chosen creatures that didn't attack this turn. Activate only during your turn.