Casting a sequence with random spells

I’m trying to make a basic macro for Death Knight rotation using standard spells. The second last part of the sequence is meant to be a random choice between Death Coil vs. Death Strike. Here’s my macro, but it doesn’t work. Where am I going wrong?

/script UIErrorsFrame:Hide()
/cast [nopet] Raise Dead
/castsequence reset=10/target/combat Outbreak, Festering Strike, Scourge Strike, Scourge Strike, Death Coil/Death Strike, [@player] Death and Decay

Probably because of the lack of [] around target and combat

I.e. reset=10 [@target, combat]

Also if you’re just targeting your target, you don’t need the @target

What you’re trying to do isn’t possible.