http://www.wowwiki.com/Spell_Reflection
Multiple Reflects
Something less known about Spell Reflection is its ability to reflect multiple spells if they are both cast while the buff is still active (i.e. leave the caster's hand). This makes it very useful when coupled with a charge, as it allows the warrior to reflect the initial spell from each casting mob simultaneously if their casts have the same length and start at the same time.
