Rootha, Mercurial Artist | Sneak Attack | Seething Song

Cards

Cast
Seething Song by paying ({2} magic symbol) ({R} magic symbol) .
Holding priority, activate
Rootha by paying ({2} magic symbol) and returning it from the battlefield to your hand, copying
Seething Song.
Resolve the copy of
Seething Song, adding ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Activate
Sneak Attack by paying ({R} magic symbol) , putting
Rootha from your hand onto the battlefield.
Repeat from step 2.