When Watcher reduces all units' Might by 2 and then Rumble, Scrapper (who gives +1 Might to all mechs) is killed by the same spell, what is the final Might of the mech tokens?

Ruling: The mech tokens end up at 0 Might but do not die. Units can have 0 Might without dying.

Sequence:

• Arcane Shift begins resolving, playing Watcher to base
• Watcher's ETB effect is not on the chain yet (Arcane Shift must fully resolve first)
• Arcane Shift deals 3 damage to Rumble, Scrapper, killing it
• Arcane Shift finishes resolving
• Watcher's ETB effect goes on the chain and resolves, reducing all units' Might by 2
• At the time Watcher's effect applies, the mech tokens are at 4 Might (3 base + 1 from Rumble still active)
• Watcher's effect snapshots and reduces them to 1 Might (4 - 2, limited to minimum 1)
• After Watcher's effect resolves, Rumble's +1 Might buff is removed as a state-based effect
• The tokens drop from 1 Might to 0 Might

Nuances:

• Watcher's effect is snapshotted when applied and limited at that time
• Rumble's continuous effect is always checked and has no limitation
• Units at 0 Might do not die