As an additional cost to cast this spell, sacrifice a green creature.
Search your library for a green creature card, put it onto the battlefield, then shuffle.
...but the price of Mangara's freedom was Asmira's life.
Thawing Glaciers enters the battlefield tapped.
, : Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Return Thawing Glaciers to its owner's hand at the beginning of the next cleanup step.
At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.
: Untap Morphling.
: Morphling gains flying until end of turn.
: Morphling gains shroud until end of turn. (It can't be the target of spells or abilities.)
: Morphling gets +1/-1 until end of turn.
: Morphling gets -1/+1 until end of turn.