When Tasty Faefolk triggers its deathknell and a Hidden unit (like Teemo) is played in response, what happens to the combat?

Ruling: The first showdown ends, all units heal, then a second showdown begins with the same attacker and defender designations. The recall step does not happen again because it is a specific step in combat cleanup that already occurred before the Hidden unit was played.

Sequence:

• First showdown concludes with Tasty Faefolk's deathknell
• Hidden unit (Teemo) is played in response to the deathknell trigger
• All units heal after the first showdown ends
• Second showdown begins with the same attackers and defenders
• If Teemo survives and it's the opponent's turn attacking into the battlefield where Teemo was hidden, Teemo can conquer

Nuances:

• The recall step is a specific part of combat cleanup that only happens once, not whenever units appear that "shouldn't be there"
• This ruling is being used at large events (like Houston Regional) because it's easier for players to understand, though it requires "forcing" a second combat that isn't perfectly supported by current rules
• The rules for this interaction are expected to change in Comprehensive Rules 1.2, likely by moving control loss to the Special Cleanup phase (which would prevent the Hidden unit from being played at all)
• Until CR 1.2, judges should ask their head judge how they will rule this interaction