Those stats aren't bad, although adding a damage bonus to buildings (say 50%?), specifying the speed penalty as 20%, and 10% slower weapon switch speed as opposed to "this weapon deploys 25% slower" would be .....?

I revamped the stats.

20% damage resistance while active
+15 max health
50% damage bonus vs. buildings
25% damage penalty vs. players
10% slower overall weapon switch speed
For the pyro who wants to take more damage before dying

Here are my Stats:

+35% Damage
+20% Damage Resistance
+50% Damage When Not Moving
-10% max Health
-50% Damage against Buildings
-35% Attack speed

Sealbreaker - Level 10 Axe :

All Critical Hits taken are converted into mini-crits
-10% Mini-crit resistance
{Hidden Stat: Sniper's primaries and Spy's melees are not effected by this weapon.}

On Hit: Any negative effect currently on you is transfered to the oponnent
25% damage penalty
-10% slower firing speed

Pros
--------------------------------------------
Each consecutive hit builds "Mwaha!!" stacks. "Mwaha!!" stacks give +15% damage per stack up to a maximum of 4 stacks
+10% swing speed

Cons
--------------------------------------------
-25 Health on wielder
-10% bullet resistance on wearer
All "Mwaha!!" stacks degrade after 4.5 seconds without consecutive hits

(+) 15% faster move speed while with 450 hammer units of a burning enemy.
(i) Missing causes you to take self damage and removes collision from you for 1 second.

This would basically let you do all sorts of cool stuff at the cost of health by allowing you to walk through a wall to hunt down a burning player.

+longer range, but slower pullout and holster
+makes enemies bleed on hit
-20% slower fire rate
-25% more damage from bullets