Put that 2100 def mecha phantom in atk position if it's not in atk postition already. Then summon the mecha phantom beast in your hand and special summon the token in defense position. Enter battle phase and attack with the weaker monster first. Then attack with the strong one and activate the effect to boost its atk by tributing the token in the damage step.
The effect works regardless of the battle position the token is in. However, if your token is in atk position, then the opponent can activate mirror force to destroy it (because it's in atk position). Then since your token is destroyed, your other mecha phantoms won't have their protection from card effects and battle resulting in a loss.
Buddy
Buddy
