Fire Emblem is a difficult series, I don't know if you guys have heard

[Words Of Wisdom]

nordlead said:

Khuutra said:
Do tiered levels stack? By which I mean, would someone who is 20/5 take - holy shit - 1300 experience for a full level up?

http://serenesforest.net is your friend

The Bonus EXP required for a full Level up (in Normal mode) is: (50 × Character's Level) + 50

• For Laguz characters, their Level is multiplied by 1.5
• For 2nd Tier Beorc characters, 20 is added to their Level
• For 3rd Tier Beorc characters, 40 is added to their Level

To obtain the Bonus EXP required for a specific amount of experience points, just multiply the above amount by (experience points) / 100.

If playing in Easy mode, the Bonus EXP required is multiplied by 2/3.

Accordingly Khuutra can multiply all his BEXP required stuff by 2/3.