Cost.SoftOncePerChain 
Source Code | Usage Examples | Cost Functions
Creates a baseline cost function used for effects that can only be activated once per chain per card, e.g. "Apollousa, Bow of the Goddess".
Signature 
Cost.SoftOncePerChain(int flag) → EffectCost
lua
Cost.SoftOncePerChain(flag)Parameters 
Returns 
EffectCost 
The generated cost function.