Spells in Legends of Runeterra work almost as well as in any card game such as Magic or Hearthstone, but with one significant difference:
Each spell has a speed parameter that determines when the spell can be cast and whether the enemy will be able to respond before the action resolves. ,
Burst: it’s the fastest spell.Burst spells can be played at any time and resolved instantly, so your opponent cannot react.
Fast: These spells can also be played at any time, but your opponent can react by playing his own Fast or Blast.
Slow: These spells can only be played out of combat, and your opponent can react.
Temporary: These spells are temporary and will disappear if not used at the end of a turn.