Guild Wars 2

This is somewhat in response to the zero incentives for support guardians thread, here are a few ideas I came up with to give them what they need.

Making the assumption that you need to deal 10% of an enemies hp to get credit for it, the following should occur:

1) If you heal someone who got credit for a kill for anywhere upwards of 10% of their HP, you get credit too.
2) If you grant a boon to someone who got credit for a kill, if that boon saved them from 10% of their HP as damage, you get credit.
3) If you grant a boon to someone who got credit for a kill, and that boon was responsible for a damage boost strong enough to have dealt 10% of the enemy hp, you get credit. *This stacks with multiple players, so if you boosted 5 players damage, and each of those 5 got a boost in damage responsible for 2% of enemy hp, thus 10% over all 5, you get credit too.

Was thinking about ones for line of warding, but I find it hard to make one fair. X number of knock downs for credit?

Also note, if the age of enemy hp for a kill is not 10, adjust the %ages accordingly for support credit.