One issue with the game atm is that you CANNOT use any other character skill while someone is casting or is in the skill animation.
For example, casting a buff spell like Haste or Burn my eyes. Until the first character finish the whole animation and put his hand down, no other character can use any skill.
With how fast the turn ticks outside of combat, having to wait until one characters finish is a huge duration loss for buffs in general.
Can you make it possible to put multiple characters into pre-cast for different skills and use them all at the same time?
