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Cleaving Reaper

5 Borderless cards in every packevery pack contains 5 Borderless cards, 1 of which may be a Textured Foil Borderless Rare or Mythic Rare card destined for a starring role in your collection Packed full of Rares & Foilseach booster contains a total of 911 Traditional Foil cards, 1 Foil-Etched card, a possible Textured Foil Borderless card (1 in 25% of packs), and a total of 5 cards of rarity Rare or higher

Think of it this way: give it three red mana, and you have a 2RRRRR creature that is a 4/3 with First Strike and Haste

The big limitation is the lack of other Kavu, but Possibility Technician seems borderline playable as your only Kavu (along with a Soulstone Sancturary or two to late game be able to play any exiled cards)