Phoenix Gearblade (MZMI-EN036) - Maze of Millennia 1st Edition

Equip only to a Warrior or FIRE monster. It gains 300 ATK. At the end of the Damage Step, if the equipped monster attacked: You can send this card to the GY; during this Battle Phase, each of your Warrior monsters and FIRE monsters can make a second attack. If this card is sent to the GY, or banished, to activate a monster effect: You can add this card to your hand. You can only use this effect of "Phoenix Gearblade" once per turn.