Option

While you have Tamer with [Tai Kamiya] in its name, you may use this card ignoring its color requiremnts.
[Main] By placing 1 [Greymon] and 1 [MetalGreymon] from your trash as the bottom digivolution cards of 1 of your [Agumon], it may digivolve in to a [WarGreymon] from hand ignoring its digivolution requirements and without paying its cost.

[Security] Activate this card's [Main] effect. You may play 1 [Agumon] from your hand or trash without paying the cost. Then, add this card to your hand.