Lady Cosmic, Astral Traveller

Indestructible, Hexproof, Flying
When a creature enters the battlefield, draw a card.
{t}: Exile all permanents you control, and return
them to the battlefield on the next end step.
{4}: Search a player's library for an instant, sorcery,
or enchantment with a converted mana cost of {3} or less and exile it. You may cast spells from exile without paying the mana cost.
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"Get ready to travel, everyone~!"