Hero Level

Hero level play a significant part to produce the final outcome of attribute score that derived from the quality score. The cap of each quality skill a hero have also determined by their nobility rank, which also derived from the hero level itself. Current maximum development of hero level can reach up to level 500 at [Hero of Glory] rank.

It's recommended to check on the combine and bag for the investiture stock before level-up the heroes, aside from the quests and current challenges which is also important to be the part of consideration.

## The Wage

The level-up cost is what make the most of early gold expenditure of a player. Until a player completed the main quest, in which one of the requirement was to brought number of heroes to certain level, the gold pretty much will be spent for this (level-up cost) aside from few spare change to upgrade cheap manor and dispatch mission.

```
1 lvl-up cost = 0.5*(lvl)^3 + 2*(lvl)^2 + 49.5*(lvl) + 48
10 lvl-up cost = 5*(lvl)^3 + 87.5*(lvl)^2 + 1102.5*(lvl) + 4290
```

The cost itself is increased for each subsequent level and the only main benefit of level-up is quality skill multiplier. The other 'benefit' including early decoy for auto-fight feature (if level-up accordingly) and free quality skill exp.

The 'Hail to the King' bonus can be triggered earlier on at 15% chance, it will give 2 free level as long as the hero upgraded below level 160. For this to trigger the x10 hero level toggle must be turned off. The daily limit for this to trigger depends on player VIP level.

## The Rank

Each level further divided into rank to checkpoints the hero development. Starting from level 50 for every 50 level-up a hero will hit the limit to their development and must be unlocked with certain material (investiture) to progress further. This limitation once unlocked will provide cap increase in hero level and quality skill level. The list of rank currently available for the hero can be seen below.

* Rank 0 (Folk Hero)
	+ req: - (starter rank)
	+ provide 50 QS level base
* Rank 1 (Renowned Hero)
	+ req: reach level 100 and turn in ruby investiture set
	+ will give 200 QS exp. and increase QS cap by 50
* Rank 2 (Storied Hero)
	+ req: reach level 150 and turn in hessonite investiture set
	+ will give 400 QS exp. and increase QS cap by 100
* Rank 3 (Epic Hero)
	+ req: reach level 200 and turn in citrine investiture set
	+ will give 600 QS exp. and increase QS cap by 150
* Rank 4 (Legendary Hero)
	+ req: reach level 250 and turn in emerald investiture set
	+ will give 800 QS exp. and increase QS cap by 200
* Rank 5 (Mythic Hero)
	+ req: reach level 300 and turn in sapphire investiture set
	+ will give 1000 QS exp. and increase QS cap by 250
* Rank 6 (Hero of Ages)
	+ req: reach level 350 and turn in amethyst investiture set
	+ will give 1200 QS exp. and increase QS cap by 300
* Rank 7 (Hero of Might)
	+ req: reach level 400 and turn in lazurite investiture set and 5 [Tourmaline Amulet]
	+ will give 1400 QS exp. and increase QS cap by 350
* Rank 8 (Hero of Glory)
	+ req: reach level 450 and turn in tourmaline investiture set and 10 [Tourmaline Amulet]
	+ will give 1600 QS exp. and increase QS cap by 400

The calculation for QS max level will be the base (from rank 0) added with current rank cap. At maximum level (rank 8) it will be 450 QS level max.

## Cost table

Aside from gold to level-up starting from [Hero of Might] rank it will require lazurite of certain amount to upgrade hero for each level. The details of cost as shown below.

From [Folk Hero] to [Heroes of Ages]From [Hero of Might] onward