Auriok Glaivemaster

As long as this creature is equipped, it has first strike and lifelink. (It deals combat damage before creatures without first strike. Damage dealt by it also causes you to gain that much life.)

As long as this creature is equipped, it gets +1/+1 and has flying.

As long as this creature is equipped, it has double strike. (It deals both first-strike and regular combat damage.)

As long as this creature is equipped, it gets +1/+1 and has vigilance.

As long as this creature is equipped, it gets +0/+2.

As long as you control a Giant, this creature gets +1/+1 and has first strike.