How about also letting each head of the hydra be marked separately?
I could see that... each has its own brain with 2 int each...lol
Swordmage marks one, paladin marks one, fighter marks one... I have a 6 person party, so I always think of 6 people parties now... right now, my group would is SM, Fighter, Cleric, Warlord, Rogue, Ranger
My group would mark two heads, quarry it, beacon of hope, furious smash (for +5, 6 at 12) and proceed to beat it into submission. Any damage the hydra did would be regained through cloak of walking wounded, dwarvish armors, potions of healing, prayers, warlord powers, etc etc etc... the hydra better have lots of buddies otherwise it dies and my group MIGHT rest...
Stupid dwarven armor saying "as if you spent a healing surge" really sucks lol... a lot of stuff says gain tons of bonuses whenever you spend a healing surge, and dwarven armor is exactly as if you spent one, so you gain all the bonuses that come along with it... for FREE grrr
