Guild Wars 2

Try being in Australia and using ground targeted skills, it’s not too bad in PvE, because enemy movement is more predictable, but in PvP it’s virtually impossible to land hits with the latency….

Actually, it sounds a lot like RIFT’s system of post-level cap advancement. They had “Planar Attunement” which meant that after 50 (cap) for a fixed amount of XP you gained a point to spend in a large number of additional skill trees. Each node on the tree would only award a very slight increase in stats, but take it far enough and it made a big difference. Whilst you could get to level cap in days, PA level cap would take months, if not years.