Syr Alagar, Champion of Duels

Double Strike, Vigilance
When Syr Alagar, Champion of Duels enters the battlefield, you may pay {w}{r}, if you do, Syr Alagar, Champion of Duels fights target creature.
Whenever Syr Alagar, Champion of Duels destroys a creature it's fighting, you gain 3 life.
"One day a new knight with two swords joined the tournament, the others laughed at him, they shouldn't have laughed, he beat them all."