Aegislash, Slashing Blade

When Aegislash blocks, flip it. Menace, Haste
When Aegislash deals combat damage to a player,
put X +1/+1 counters on it, where X is the
number of times Aegislash has hit that player.
Aegislash hits twice each combat, one during first strike step and one during normal strike step. Aegislash's controller chooses the power of each
strike. The power of the strikes must add up to Aegislash's power.