Draw two cards, then discard a card.

, : Search your library for a creature card with converted mana cost X or less, reveal it, and put it into your hand. Then shuffle your library.

Whenever an opponent plays a land, if Hidden Stag is an enchantment, Hidden Stag becomes a 3/2 Elk Beast creature.
Whenever you play a land, if Hidden Stag is a creature, Hidden Stag becomes an enchantment.

At the beginning of your upkeep, you may put a verse counter on Lilting Refrain.
Sacrifice Lilting Refrain: Counter target spell unless its controller pays , where X is the number of verse counters on Lilting Refrain.

, : Tap X target lands.

When an opponent casts a creature spell, if Opal Caryatid is an enchantment, Opal Caryatid becomes a 2/2 Soldier creature.

: Prevent all combat damage that would be dealt this turn by target attacking creature with flying.