Blood Tyrant is a rare Creature — Vampire card from Archenemy: Nicol Bolas (E01), collector number 81. Current market price: $0.36, TCGplayer market prices via Scryfall.
Flying, trample At the beginning of your upkeep, each player loses 1 life. Put a +1/+1 counter on this creature for each 1 life lost this way. Whenever a player loses the game, put five +1/+1 counters on this creature.