Master Yi, Unstoppable

champion unit

[Level 3][>] I cost energy 2rune calm less. (While you have 3+ XP, get the effect.) [Level 6][>] I cost energy 4rune calmrune calm less instead. [Level 11][>] I cost energy 6rune calmrune calmrune calm less instead. [Level 16][>] I can't be chosen by enemy spells and abilities.

Rulings

• I play Alpha Strike targeting my Master Yi, Unstoppable and splitting 12 damage among three of the four enemy units at battlefields. If my opponent plays Flash in reaction to my Alpha Strike, moving two of the targeted units to base, can they then play Repulse and counter my Alpha Strike?