[Rules] Foray of Orcs should use Last Known Information
Reproduction Steps (platform: Windows):
1) Cast Foray of Orcs (with no Army in play).
2) Allow Foray of Orcs to resolve, creating a 2/2 Orc Army and a reflexive trigger. Choose an opponent's creature to target with the reflexive trigger.
3) In response to the trigger, target the Orc Army with Shock.
4) Allow Shock to resolve, causing the Orc Army to die.
5) Allow the reflexive trigger to resolve. It will deal 0 damage (on Arena).
Expected behavior:
In this circumstance, the reflexive trigger should still deal 2 damage, due to the principle of last known information. In the Comprehensive Rules, 608.2h says, in part: "If the effect requires information from a specific object, including the source of the ability itself, the effect uses the current information of that object if it's in the public zone it was expected to be in; if it's no longer in that zone, or if the effect has moved it from a public zone to a hidden zone, the effect uses the object's last known information."