Magnet Warrior Sigma Minus

Per-phrase breakdown

• Once per turn, when an attack is declared involving 2 EARTH monsters: You can negate that attack. (Trigger)
• You can only use each of the following effects of "Magnet Warrior Sigma Minus" once per turn. (Condition)
• You can reveal this card in your hand; Fusion Summon 1 Fusion Monster from your Extra Deck, using Rock monsters from your hand or field, including this card in your hand. (Ignition)
• If this card is Normal or Special Summoned: You can send 1 Level 8 "Magna Warrior" monster from your Deck to the GY. (Trigger)

Judge-facing facts

• Normal Summon / Set from hand uses no tributes (Level 4).
• The effect to negate an attack involving 2 EARTH monsters is a Trigger Effect.
• The effect to Fusion Summon is an Ignition Effect activated in the hand.
• The effect to send a Level 8 'Magna Warrior' to the GY is a Trigger Effect.
• The Fusion Summon and GY send effects are each restricted to once per turn.

Card-specific notes from database

• (Konami neuron) When resolving the Fusion Summon effect, sending materials to the GY and the Fusion Summon do not happen simultaneously.
• (Konami neuron) If the Fusion materials leave the hand or field but are not sent to the GY due to another effect, the Fusion Summon is still performed.
• (Konami neuron) The Trigger Effect that activates when this card is Normal or Special Summoned can be activated during the Damage Step.