PHNI-JP080 鉄騎の雷鎚 Tekki no Ikadzuchi (Steelsteed Thunderhammer/Iron Thunderhammer)
Counter Trap Card
(1) When a Spell/Trap Card, or monster effect, is activated on the field: Pay half your LP; negate the activation, and if you do, destroy that card, then destroy all cards in the Spell & Trap Zone and Monster Zones in its same column.

Note: 鉄騎 has been previously localized as Iron. 雷鎚 is a play on 雷 (Ikazuchi), a way of saying Thunder, but tossing in Tsuchi (鎚), the word for Hammer or Mallet.

鉄鎚 as a semi-related note is a metaphor for a completely devastating blow or an unstoppable force. Ever here the term ‘Iron Hammer of Justice’ in anime or manga? Same idea being used here.