Hi so I have a couple hypothetical scenarios I need straightened out with regards to how Slum Reaper
The heart of all these questions is when are "targets" (targets in quotes since it doesn't say target anywhere in the ability) chosen for Slum Reaper's trigger? And what happens if Slum Reaper is somehow removed before it's trigger resolves?
1) Say I have an Ulvenwald Tracker
on the field and my opponent has a Falkenrath Aristocrat
. I cast a Slum Reaper, it resolves and its trigger goes on the stack. In response to the trigger he casts a Searing Spear
at my Slum Reaper. Does he still have to sacrifice a creature? Do I still have to sacrifice my Ulvenwald Tracker
even if I wanted to sacrifice my Slum Reaper initially?
2) Same scenario as above, but I have no creatures on the battlefield when I cast Slum Reaper (thus the slum reaper would be in my graveyard when the trigger resolves and I would have no creatures to sacrifice). What happens?