Strange health loss

[Shauni]

Sometimes with no reason when I press "Done" button my health is lowered by random amount of points and after that my creatures starts attacking.
Couple of times this effect occured in the end of game so it was clearly visible on resulting score. First time I surely had 100hp before killing opponent, but got only 19pts instead of flawless victory. And second time I have 60hp against level3 bot but got only 15pts.
I tried to figure out when this loss happen but still have no clue.

[Schattenfresser]

What deck do you use? Against which decks did you play when you had the life loss?
And is there a chance that you had antimattered vampires or antimattered creatures with liquidshadow? That would explain the life lose, because antimattered vampires would damage the owner not the opponent.

[Kurohami]

antimattered creatures with antimatter?

Wow, wouldn't that make a normal creature? Or could you possibly mean an anti-mattered purple nymph?

[finkel]

Maybe you're poisoned?

[Schattenfresser]

antimattered creatures with antimatter?

Wow, wouldn't that make a normal creature? Or could you possibly mean an anti-mattered purple nymph?

I meaned Liquidshadow. ???

[Kurohami]

@Schattenfresser: I thought so.

@finkel: Poison does not damage the player before his/her creature attacks, it damages the player when the opponent end his/her turn. The only reasonable explanation is desync or liquid shadow/vampire combo.

[Shauni]

I discovered the reason... It's the same bug as with drain life. If you drain life more than you can get from next life regen source (like vamps or shards) this health loss occurs.
For example, I have 1 minor vamp on field (2/2) and drain 10 life from opponent. I got 10 life from draining, but when vamp deals damage, my life drops by 8 points (as if there was no draining at all but only vamp effect).

[melzardust]

I discovered the reason... It's the same bug as with drain life. If you drain life more than you can get from next life regen source (like vamps or shards) this health loss occurs.
For example, I have 1 minor vamp on field (2/2) and drain 10 life from opponent. I got 10 life from draining, but when vamp deals damage, my life drops by 8 points (as if there was no draining at all but only vamp effect).

Experienced same thing myself