Warriors Strike - Although not in the two hand tree, it rests in the middle. This skill is somewhat like Striking Up but with more benefits. Compared to Striking Up (see above) this skill provides more striking power and in addition causes bleed on the Dungeon Fighter Gold enemy over 15 seconds.
The stun duration is again around 2.5~3 seconds and the cool down time is low. Use this skill in conjunction with Striking Up for some awesome stun-lock combos.
Zoom - A passive ability that adds to your accuracy. I didn't find any use in going higher than level 1 in this skill because even with low accuracy you still hit monsters 95% of the time.
Each point of quickness gives +1 accuracy and upgrading your gloves also gives an additional bonus to accuracy so for the time being I'd say this is a skill to stay at level 1.
Stone Skin - A passive ability that adds to your defense, this is a good skill even for a two hand build, it raises your defense by quite a lot per level and is useful when cancelling out the negative effect of Light Warrior (see below.)