Huh. Turn an enchantment into a Forest. At the cost of card disadvantage. Nice if an enchanted creature of yours is about to die, or if you've drawn an enchantment that's not very useful in the current matchup... but even then, your only reward is a Forest. Just ramping by one mana in exchange for two cards (this card plus the enchantment) doesn't feel like a good deal.

I'd suggest either make this cantrip, or make it find two Forests. That way you're giving up two cards and getting two cards, and getting decent ramp if you manage to get a cheap enchantment onto the battlefield.

Perhaps the Forests should arrive tapped in that case, though. I guess I hadn't thought of the use case of using this as a (rather expensive) way to get one more mana than the opponent thought you had.