Telim'Tor is a rare Legendary Creature — Human Knight card from Mirage (MIR), collector number 197. Current market price: $0.86, TCGplayer market prices via Scryfall.
Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) Whenever Telim'Tor attacks, all attacking creatures with flanking get +1/+1 until end of turn.