Path of Reflection

Whenever Path of Reflection enters the battlefield, exile target legendary creature you
control until Path of Reflection leaves the battlefield. Whenever a creature enters the battlefield under your control, you may return
Path of Reflection to your hand.
{x}{g}, {t}: Put a token that's a copy of the exiled
card onto the battlefield, except it isn't legendary.
X is equal to its converted mana cost. Whenever
Path of Reflection leaves the battlefield, exile all
tokens created by it.