Onyankopon is a Union Arena card from Attack on Titan Vol.2 EX10BT/AOT-2-002. Compare listings from Singapore Union Arena sellers on CardJio, then jio them on WhatsApp.
Card type
CHARACTER
Color
Yellow
Energy
3
AP
1
BP
3500
Generated energy
Yellow 1
Source title
Attack on Titan
Card Text
[When Played] Play up to one yellow character card with 3 or less required energy and 1 AP cost, other than [The Rumbling] affinity, from your hand set to resting onto your field. You cannot play a card with this ability if you already have a card with the same name on your field.