[RD/KP01] Piercing!

And a Spell that grants piercing appears.

RD/KP01-JP037 貫通! Kantsuu! (Piercing!)
Spell Card
Requirement: None
Effect: Select 1 face-up monster you control. During this turn, its attacks pierce (when it attacks a Defense Position monster, inflict battle damage equal to how much its ATK is higher than the DEF of the monster).

Source

NeoArkadia

NeoArkadia is the 2nd number of "The Organization" and a primary article writer. They are also an administrator for the forum Neo Ark Cradle. You can also follow them at @neoarkadia24 on Twitter.