[MSEA] Tri-Trio-Triple Event!!!

The description says "Bonus EXP". "Bonus EXP", in my English, means "added on the the normal EXP". So after the first hour you will be getting 10, 10, 10+3; then 10, 10, 10+10; and so on until after 5 hours you will be getting 10, 10, 10+20 on every triplet of those 10-exp monsters.

Yeah, the percentages can be confusing but this is correct. Another way is (using 10exp as base)...
From 1 -2 hours of login: 1.3x on every 3rd mob hunted (13)
2 - 3 hours: 2x on 3rd mob hunted (20)
3 - 4 hours: 2.5x on 3rd mob hunted (25)
4 - 5 hours: 2.8x on 3rd mob hunted (28)
5+ hours: 3x on every 3rd mob hunted (30)

Just a note, the MS launcher that gMS has starts tracking your time then, before you even start the game, and not when you login... so if this comes to Global, more coding needed.