I go the opposite way on defense with arrows. The arrow damage is 25% of total health, so technically the arrows will never kill you. On defense I like more snipers and Zeline for her AoE attack debuff.
If I’m attacking a team with multiple healers on their defense, then I take a healer and a splash healer when possible.
If you chose to have 2 healers on your defense make sure you have some direct attack power for finishing shots.
The advice to bring some hit-3, splash and AoE heroes is sound. I was startled today when a flank Kadilen fired and took out three of my offense that had been whittled down by arrows and other attacks.
As attacker I go the other way round. Always at least two health dealers against arrows and att buff, against health aid 4 fast hitters and only one health dealer. Sadly the buff aid isn’t dispellable.
It’s really the fact that arrows only damage 25% of remaining health (as opposed to total health) that skews intuition.
But once an enemy hero is badly hurt, a survivable defender with a weak AOE like Zim, or a weak splash like Buddy, is often lethal. So adding extra survivable AOE or splash to your team makes sense.
Conversely, since the attacker needs to bring extra healing to overcome the arrow DPR, the proportion of damage your defense takes from specials vs tiles will likely swing toward tiles a bit.