One card named "Heat Blaster" returns to your hand when you summon a Spirit whose name contains "Baltan Seijin." This effect can only be used once per turn.
Flash - Send one core from any opposing Spirit(s) to the reserve. If a Spirit wasn't depleted by this effect, exhaust it. Afterwards, if Soul Core was used to pay the cost, you can activate the Bunshin effect of one of your Spirits.