You get to pay one mana to put a creature into play and give it haste, but you do have to sacrifice that creature at the end of the turn
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However, one mana is a very low cost to have access to a wide toolbox of creatures of any color, with no cost restrictions, and any archetype with creature-based combos and/or that wants to take advantage of more of the famous hatebears can take advantage of this spell in some way