Chains

Chains are a series of difficulty modifiers that increase the challenge faced by the player. There are a total of ten chains (11 if including Chain 0), with each chain inheriting the modifiers from those before it. A chain is unlocked by having any class clear all three dungeons on the previous one, after which it is unlocked for all classes.
On the class selection screen, a line of chain links will appear for each chain unlocked, with an appropriate number of them coloured gold for the highest chain level cleared by the selected class. A series of crowns will be on the bottom, representing the dungeons cleared on that chain.
List of Chains
Number	Description 	Notes
0 	No handicaps. 	
I 	Tougher floors. 	More enemies per floor. Applies to all chains with this description.
II 	Leave Blight on each square you leave.	Player leaves 1 point of Blight damage on their original square when a piece is played.Void Grasp movements do not leave Blight.Nomad will not leave Blight if she does not move upon playing a piece.
III 	Tougher floors. 	
IV 	Upgrades are more expensive. 	All card upgrades cost 1 more gold. Does not apply to Hearts.
V 	Tougher floors. 	
VI 	Start with only two full Hearts. 	
VII 	Tougher floors. 	
VIII 	Edge columns start with Blight. 	Columns a and e start with 1 point of Blight damage.
IX 	Tougher floors. 	
X 	Final bosses deal double damage. 	Attack animations of affected enemies will play twice.