I propose that wearing your slayer title in PVE/WvW to actually have an impact on the game. Below are some suggestions for such. Not all need be implemented, just listed for speculation. I also think that displaying of titles that will affect the game should only be changeable in cities or perhaps just out of combat.
Positive impacts
For each tier in the slayer title track the player should get some advantage with regard to said creature, possible examples +X% Stat for each tier(any stat, damage etc).
For each tier in the slayer title track the player receives an extra roll on loot table for each kill.
Negative Impacts
When player is in combat radius of creature they will generate higher aggro per tier.
Nonaggressive versions of creature will become hostile.
When player is interacting with NPC versions of creature there will be negative impacts – ie merchants will not trade, possible non important NPC may become hostile, possible new event chains may open (actually a positive impact)
When player is in combat radius of creature, for each tier of the slayer track there will be an X% chance that the creature will summon aid, with aid summoned being relative also to the tier in the track. ie, lower tiers summon common, higher tiers may summon more common, veteran or even champion. These summoned creatures may also have an aggro lock for the player only and will ignore all else until the player is defeated. If player is defeated, the summoned creatures will persist only for another 30 minutes so as not to clog up an area with too many creatures.
I would also like to add an extra tier to the track with relation number of champions slain of a particular type, and when this has been achieved the following may happen. When player is within range of creature type there will be a chance that the creatures will have sought higher powers to help defend them and will have recruited from the mists ie players(initially 1, up to a full party of 5 for higher tiers in track) who are in w3 against the particular server (see selection criteria below) will be given the option to port to the zone (appropriately levelled) and become Heroes for the beleaguered creatures with some appropriate reward for defeating the slayer title player. This may open up an extra achievement track of creature defender with more fun stuff yet to be thought of.
Ofc, if the slayer player defeats the summoned heroes there should also be an appropriate reward. Perhaps if the player gets help and defeats a full party of five then the creatures may look upon the player as an incarnation of a destructive figure of legend or force, and start worshipping or supplicating the player for a short period of time, the result being all relevant creatures are temporarily nonhostile to player and loot rolls from creatures without the need to kill them, but each creature must be interacted with by the player.
Decisions will need to be made whether summonings can occur during events,dungeon or fractals as this could seriously impact on the success of such. Imagine the RNG pulling a couple of champions or even heroes at a world boss event or on a temple event in ORR – it may be awesome (it would make world boss events much more of a challenge!) but could also result in event fail quite easily when stray AoE takes out various neccessary NPC’s. Alternatively everybody could just rage at the noob who forgets to turn off their title.
Hero selection criteria
Heroes will initially be sought from w3 overflow. Upon completion of defence the hero will be returned to overflow at the head of the queue. If they were would have normally made it to w3 during the time they are away their spot will have been saved for them and they will enter w3 immediately and the next time they are entered in a queue they automatically go to the front.
If there is no overflow then heroes will be sought from the safe areas in w3.