#showtooltip Aspect of the Turtle
/stopcasting
/cast Aspect of the TurtleCancels your queued spell and turns on your immunity straight away. Aspect of the Turtle is a reaction to something that already happened, so any delay makes it useless.
Marks whatever your cursor is over. Because the mark boosts your damage against that unit specifically, it pays to place it on the thing you are about to swap to rather than the thing you are already hitting.
#showtooltip Hunter's Mark
/cast [@mouseover,harm,nodead][] Hunter's Mark