Kunai with Chain

Normal Trap

Activate 1 or both of these effects (simultaneously).
● When an opponent's monster declares an attack: Target the attacking monster; change that target to Defense Position.
● Target 1 face-up monster you control; equip this card to that target. It gains 500 ATK.

Rulings – Yugipedia

Printings:

The Duelist Genesis: TDGS-EN098 (Super Rare) - 2008-09-02
Warriors' Strike Structure Deck: SDWS-EN033 (Common) - 2009-10-23
Duel Terminal 5a: DT05-EN048 (Duel Terminal Normal Parallel Rare) - 2011-05-29
Battle Pack: Epic Dawn: BP01-EN087 (Common) - 2012-05-24
Battle Pack: Epic Dawn: BP01-EN087 (Starfoil Rare) - 2012-05-24
Battle Pack 2: War of the Giants: BP02-EN198 (Common) - 2013-06-28
Battle Pack 2: War of the Giants: BP02-EN198 (Mosaic Rare) - 2013-06-28
Saga of Blue-Eyes White Dragon Structure Deck: SDBE-EN035 (Common) - 2013-09-12
Legendary Collection 4: Joey's World Mega Pack: LCJW-EN081 (Common) - 2013-10-11
Battle Pack 3: Monster League: BP03-EN210 (Common) - 2014-07-31
Battle Pack 3: Monster League: BP03-EN210 (Shatterfoil Rare) - 2014-07-31
Millennium Pack: MIL1-EN048 (Rare) - 2016-04-14
Legendary Decks II: LDK2-ENJ36 (Common) - 2016-10-06
Speed Duel Starter Decks: Duelists of Tomorrow: SS02-ENB18 (Common) - 2019-01-24
Speed Duel Tournament Pack 4: STP4-EN026 (Common) - 2022-09-29
Speed Duel: Streets of Battle City: SBC1-ENB19 (Common) - 2023-08-24
2-Player Starter Set: STAS-EN025 (Common) - 2024-01-26
Quarter Century Bonanza: RA03-EN204 (Platinum Secret Rare) - 2024-11-07
Quarter Century Bonanza: RA03-EN204 (Quarter Century Secret Rare) - 2024-11-07

Prices:

Cardmarket: 0.02 €
TCGplayer: $ 0.08