Calming Verse

The clause that makes this card unusual is the second sentence: it destroys every enchantment you don't control unconditionally, then turns the gun on your own enchantments only if you control an untapped land. That self-destruct toggle is the whole design. The default state is symmetry: in the late game you will almost always have a land sitting open, which means the sweep takes your enchantments down with the opponent's. To make it one-sided you have to work for it, tapping out before you cast so the conditional clause finds no untapped land to check and your own board survives. It is a Tranquility variant that rewards the player who simply runs no enchantments, since for them the second sentence is dead text and the spell always reads as a clean wipe. Most mass enchantment removal of its era just hit everything on the board; Calming Verse hands you a knob and asks how much rope you want to give yourself. The friction is real, though: the untapped-land check is easy to satisfy by accident, so the "spare my own enchantments" plan demands you commit your mana first and eat the tempo hit. That tension, between wanting mana open and wanting to protect your own permanents, is the entire decision the card poses, and it is sharper than the flat four-mana sorcery rate suggests.