Seller minion that automatically sells items from a linked chest!
By default all items are sold at 25% of their original sell price on tier 1
The minion can be upgraded to a higher tier in order to increase their speed, increase sell rate and the total amount of chests that can be linked to the minion can also be upgraded.

Tier 1:
- speed 120 (seconds)
- 1 chest
- 25% of original sell price

Tier 2:
- speed 90 (seconds)
- 2 chests
- 45% of original sell price

Tier 3:
- speed 60 (seconds)
- 3 chests
- 70% of original sell price