Eka the Flame Buddy (MP23-EN130) - 25th Anniversary Tin: Dueling Heroes Mega Pack 1st Edition

If this card is Normal or Special Summoned: You can target 1 face-up Monster Card in either player's Spell & Trap Zone; Special Summon it to your field. You can target 1 other face-up monster you control; equip that face-up monster to this card as an Equip Spell that gives it 500 ATK. You can only use each effect of "Eka the Flame Buddy" once per turn.