Here's how it works:
1. Opponent Attacks: Your opponent declares an attack with a monster.
2. Mystic Wok Triggers: Mystic Wok's effect activates because an opponent's monster is attacking.
3. Tribute Choice: You can choose to tribute your opponent's attacking monster.
4. Cannon Soldier Triggers: Since you tributed your opponent's monster, Cannon Soldier's effect activates.
5. Tribute on Enemy Side: You can then tribute a monster on your opponent's side of the field.
Key Points:
* Simultaneous Effects: Mystic Wok's effect and Cannon Soldier's effect can activate and resolve in the same chain, allowing you to tribute two monsters.
* Tribute Order: You can tribute your opponent's attacking monster first, then use Cannon Soldier's effect.
* Opponent's Choice: Your opponent may choose to negate or stop either effect if they have the appropriate card or effect.
This combination of effects can create a very strong advantage for you, potentially removing multiple threats from the field!