Freya, Who Has Forgotten

Flying
When Freya, Who Has Forgotten enters the battlefield, reveal a random card from your hand.
Gain life equal to that card's converted mana cost.
Tap any number of Walls. Apply one of the following based on the number of tapped Walls:
1: Tap Target Creature. That creature doesn't untap during its owner's untap step.
2: Draw a card.
3: Create a token that is a copy of target Wall you control.
4: Destroy all creatures.