Your search for "Messer Type-F02 GD03-043" revealed the following:
Messer Type-F02 - GD03-043 - Common from GD-03 Booster Pack: Steel Requiem, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: akamiho Card Text:[When Paired] Choose 1 enemy Unit. Deal 1 damage to it.