Number 79: Battlin' Boxer Nova Kaiser

Level 4 FIRE/Warrior Xyz Effect
2300 ATK / 1600 DEF

2 Level 4 monsters
Once per turn: You can attach 1 "Battlin' Boxer" monster from your hand or Graveyard to this card as an Xyz Material. This card gains 100 ATK for each Xyz Material attached to it. When this card you control is destroyed by your opponent's card (by battle or card effect) and sent to your Graveyard: You can target Level 4 or lower "Battlin' Boxer" monsters in your Graveyard, up to the number of Xyz Materials this card had on the field; Special Summon those targets.

Rulings – Yugipedia

Printings:

World Superstars: WSUP-EN014 (Super Rare) - 2015-04-16
Legendary Duelists: Soulburning Volcano: LD10-EN044 (Rare) - 2023-08-10

Prices:

Cardmarket: 0.12 €
TCGplayer: $ 0.09