Upgrade

Burn an S-Rank monster or a B-Rank or A-Rank Shadow Army along with essence stones to potentially obtain a higher-Rank Shadow Army.

When a user attempts to upgrade an S-rank monster card

You can attempt an upgrade up to 100 times at once. (This will be updated during the open beta period.)

The Shadow Army obtained through successful upgrades is predetermined.

Monster&Shadow Army	Upgrade condition	success rate
S-Rank Monster > B-rank Shadow Army	S-Rank Monster (1) + Essence Stones (100)	10%
B-rank Shadow Army > A-rank Shadow Army	A-rank Shadow Army (1) + Essence Stones (100)	1.5%
A-rank Shadow Army > S-rank Shadow Army	A-rank Shadow Army (1) + Essence Stones (100)	0.5%

Upon a successful upgrade: The monster or Shadow Army used for the upgrade and the essence stones will be consumed, allowing you to acquire a higher-rank Shadow Army.

Failure upon upgrading: The monster or Shadow Army attempting the upgrade will remain, but the essence stones will be consumed.