Boosters are used to temporarily boost certain battle stats. You can only equip up to 4 at a time with with the ones you have equipped displayed at the bottom of your equipment panel at the top right corner of the shop's menu. Each booster will only last for 24 hours from the moment you equip it. Hovering your mouse over one of your equipped boosters (tap and hold on mobile) will cause an info box to appear that shows what stats are boosted by how much as well as a timer to denote how long until the booster runs out. When the timer ends, it will automatically be unequipped. Once a booster is equipped, it cannot be removed until its timer runs out.
The amount they boost is a flat amount for Common, Rare, and Epic grade items, however Legendary grade equipment will boost by a percent value of how much of that stat you already have. This does stack with other boosters of rarities other than Legendary.
Mythic grade items work entirely different however and boost different effects than normal boosters. Additionally, while a normal booster lasts a period of time, Mythic boosters last for a set number of uses for their given area of effect.
Boosters are purchased at a cost of kobans with a cost relative to their rarity, however they are sold back for cash. Alternatively, Boosters can be won from Epic or Mythic Pachinko. Their costs are: Common - 12 Kobans, Rare - 30 Kobans, Epic - 60 Kobans, and Legendary - 90 Kobans. All Mythic Boosters cost 450 Kobans except for Sandalwood Perfume which costs 540.
Normal Boosters:
Ginseng Root
Jujubes
Chlorella
Cordyceps
Raises the 3 Base Stats
Raises Harmony
Raises Ego
Raises Damage
Common: +100
Common: +400
Common: +1,200
Common: +300
Rare: +350
Rare: +1,400
Rare: +4,200
Rare: +1,050
Epic: +1,225
Epic: +4,900
Epic: +14,700
Epic: +3,675
Legendary: +6%
Legendary: +20%
Legendary: +10%
Legendary: +10%
Mythic Boosters:
Sandalwood Perfume
All Mastery's Emblem
Headband of Determination
Luxurious Watch
Get +1 shard every time you win a shard from Villains up to +11.
Get +15% Damage when attacking in Leagues and Seasons for the next 100 performances.
Get +15% Damage vs Villains and Pantheons for the next 200 performances.
Get +25% Damage vs all Champions for the next 200 performances. (includes Club Champions)
Combative Cinnamon
Alban's Travel Memories
Angel's Semen Scent
Get +5 Mojo on a win or lose 0 Mojo on a loss in Seasons for the next 100 performances.
Gain +20% XP (+5% if you are above level 300) from all sources up to 100,000 XP.
Get +25% power for your guys in Places of Power for the next 60 missions.
