Etali, Primal Storm [Bloomburrow Commander] Legendary Enchantment // Legendary Land and even demanding events

and even demanding events

return those cards to the battlefield under their owner's control and those creatures gain haste until end of turn

Set: The Lost Caverns of Ixalan Type: Creature — Merfolk Wizard Rarity: Rare Cost: {2}{U} Flash

Return an unblocked attacker you control to hand: Put this card into play from your hand tapped and attacking

Etali, Primal Storm [Bloomburrow Commander] Legendary Enchantment // Legendary Land and even demanding eventsSet: Bloomburrow Commander Type: Legendary Creature Elder Dinosaur Rarity: Rare Cost: {4}{R}{R} Whenever Etali, Primal Storm attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs. The storm rages and the earth breaks.