Greymon

[When Digivolving] If this Digimon's name is [Koromon], it gets +3000 DP for the turn. Then, delete 1 of your opponent's Digimon with as much or less DP as this Digimon. [All Turns] This Digimon has all the names of level 3 and lower cards in its digivolution cards. [On Deletion] You may play 1 Tamer card with [Tai Kamiya] or [Kari Kamiya] in its name from your hand without paying the cost, or hatch in your breeding area.

Alternate effect

[Digivolve] Lv.3 w/[Agumon] in name: Cost 2