Sabotage Strategist is a uncommon Creature — Vedalken Ranger card from Aetherdrift (DFT), collector number 59. Current market price: $0.10 (foil $0.19), TCGplayer market prices via Scryfall.
Flying, vigilance Whenever one or more creatures attack you, those creatures get -1/-0 until end of turn. Exhaust — {5}{U}{U}: Put three +1/+1 counters on this creature. (Activate each exhaust ability only once.)