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Attack!" When Joey activates that monster's first effect, he announces, "Immortal Phoenix Gearfrieds effect activates from my hand!" When Joey activates that monster's second or third effect, he announces, "I activate Immortal Phoenix Gearfrieds effect!" When Joey Summons "Legendary Knight Hermos", a cut-in frame of Joey briefly appears, and he announces, "I can sure use your help!" followed by "Legendary Knight Hermos!" Most of the time when Joey attacks with that monster, he announces, "Legendary Knight Hermos

You can only pay an equip cost during your main phase with an empty stack not mid-combat, not on an opponents turn (unless a card explicitly says otherwise)

However, keep this standard rule in mind: be well-rounded

Goblin Biker Grand Breakout X SPELL Quick-Play Tribute 1 monster