Power Sheep [FINISHED]; BTP WINS

Might as well divulge methodology of power and efficiency:

Efficiency is basically (CURRENT ATTACK)/(CURRENT HEALTH+DEFENSE) - in other words, you need CURRENT HEALTH + DEFENSE hits to die in one turn, and the world is free of CURRENT ATTACK attacks. We do need to factor in evade as well, so therefore efficiency is reduced by 5% for every EVADE point you have.

Note that CURRENT ATTACK is attack for that turn. Maybe not the best metric, but whatever.

Power is a little more complicated. I prorate DEFENSE to be worth twice as much as a healthpoint (which is perhaps underselling its value, but if you survive a day that defense is going to be working double duty) - so the defensive component is (CURRENT HEALTH + 2*DEFENSE). Also note that regen works as well as defense (albeit, it is better than 1 defense point if you aren't attacked at all, although worse than 1 defense point if you're at max health - this tradeoff is sufficiently comparable), so one regen point would be worth 2 health as well. To factor in evade, multiply by (1+0.05*EVADE) since that's about how well you dodge attacks, lengthening your lifebar.

Your offensive component is (ATTACK + 0.5*CRITICAL), because critical gives you, on expectation, 0.5 attack points (+2 with a 25% chance). Finally to compute power, multiply your offensive and defensive components.

To give some worked-out examples:

Sleepy: 3/6 Health, 4 Attack, 3 Defense, 1 Evade

Efficiency is 4/(3+3)*0.95 ~ 0.63
Power is 4*(3+3*2)*1.05 ~ 38

Palamedes: 6/8 Health, 2 Attack, 3 Defense, 1 Evade, 1 Critical

Efficiency is 2/(6+3)*0.95 ~ 0.21
Power is (2+0.5)*(6+3*2)*1.05 ~ 32