Twinblade Paladin [Foundations]

Set: Foundations Type: Creature — Human Knight Rarity: Uncommon Cost: {3}{W} Whenever you gain life, put a +1/+1 counter on Twinblade Paladin.As long as you have 25 or more life, Twinblade Paladin has double strike. (It deals both first-strike and regular combat damage.)