DracoSuave
First Post
Toughness is more than 5 hitpoints. It's 5 + 1 or 2/surge (at heroic) or 10 + 2 or 3/surge (at paragon). You'll be taking damage no matter what, but you won't be taking OA's no matter what, and if you do take OA's, DM is going to save you only time out of ten.
Looking at a level 13 skirmisher, randomly picked out of the Dark Sun book cause that was what was in reach, the Kirre.
It has two basic attacks it can use. One slows, and is terrible for a ranged attacker to get hit by because of that. Toughness does not help you here. The second hits for 3d8+6 damage, or 19.2 points of damage. As an archer ranger, you likely have 7 surges. It depends on how long your adventuring day is, but if you get missed twice because of defensive mobility, toughness has been beat for the amount of 'unconsciousness prevention' you've incurred. On top of that, Dm prevented that slow it's more likely to use, or that immobilize, or that 5 ongoing damage(save ends) or all those nasty riders that basic attacks have on monsters that player characters don't get on their sheets.