I would suggest that match ups for PvP attacks use a similar mechanism to how players are ranked in wars. For example, create x number of player levels, say you end up with 1000. Let players ranked 1-100 search only for players in that level, 101-200 same, etc.
Seems like the match up mechanism for PvP attacks now is flawed as it can be manipulated too easily by trophies.
bg

