MetalGreymon

＜Material Save 2＞ (When this Digimon would be deleted, you may place 2 cards in this Digimon's DigiXros requirements from this Digimon's digivolution cards under 1 of your Tamers.)
[On Play] This Digimon gains ＜Rush＞ for the turn. (This Digimon can attack the turn it comes into play.)
[When Attacking] ＜De-Digivolve 1＞ 1 of your opponent's Digimon. (Trash the top card. You can't trash past level 3 cards.) Then, this Digimon may digivolve into a Digimon card with the [Blue Flare] trait from under your Tamers without paying the cost.

[End of Attack] [Once Per Turn] You may play 1 level 4 or lower Digimon card with the [Blue Flare] trait from under any of your Tamers without paying the cost.

[Alt]
DigiXros Requirements [DigiXros -2] Blue [Greymon] x [MailBirdramon]
When this would be played, you may place specified cards from your hand/battle area under it. Each one reduces the play cost.