Perdiodic Blood

You can wound yourself with a melee weapon and decide how much HP you want to lose. Based on the amount of HP, you can give a creature within sight a higher AC for 1 minute or an attackbonus for 1 minute. (1 minute = 10 rounds)

• 2 HP = AC +1 or attack +2
• 4 HP = AC +2 or attack +4
• 6 HP = AC +3 or attack +6
• etc.

At Higher Levels. The amount of creatures you can affect is as high as half your characters level (rounded up)