Riparian Tiger is a common Creature — Cat card from Kaladesh (KLD), collector number 167. Current market price: $0.09 (foil $0.34), TCGplayer market prices via Scryfall.
Trample When this creature enters, you get {E}{E} (two energy counters). Whenever this creature attacks, you may pay {E}{E}. If you do, it gets +2/+2 until end of turn.