When Switcheroo is cast during combat on units with Assault and Shield, do those passive effects transfer with the might swap, and what are the final might values?

Ruling: Assault and Shield are passive effects that continuously apply during combat, not triggers. When Switcheroo resolves, it snapshots the current might values (including passive bonuses) and swaps them by applying +10 to one unit and -10 to the other. The passive effects themselves remain on their original units and continue to apply.

Sequence:

  • Combat opens, units gain attacker/defender designations
  • Assault and Shield passives immediately apply (Poro becomes 3 might, Volibear becomes 13 might)
  • Switcheroo is played when a player has priority
  • Switcheroo resolves: Volibear gets -10 penalty (becomes 3 might), Poro gets +10 bonus (becomes 13 might)
  • During combat: Poro has 13 might, Volibear has 3 might
  • After combat ends: Poro loses Assault bonus (becomes 12 might), Volibear loses Shield bonus (becomes 0 might)

Nuances:

  • Assault and Shield are passive effects (not triggers), so they don't use the chain
  • The passives don't transfer or reapply after the swap - they continue applying to their original units
  • Keywords like "While/If" or statements of fact indicate passive effects; "When/At" indicate triggers