Fixed Thought-Stalker Warlock etb/The Eternal Wanderer -4 bug

[fireshoes]

I cast a Thought-Stalker Warlock without my opponent having lost life and them having no cards in hand. When it entered, each player sacrificed their other creatures. We each had one before that. The game log said we discarded them. I think the bug is related to The Eternal Wanderer. My opponent had played and -4'd her on their turn. The etb Thought-Stalker Warlock produced was kind of similar to that effect.

Event 271218502, Game 888011454, turn 8