Question about magic the gathering rules?

Question

When attacking, can you use galvanic key to untap the creature that just attacked, and attack again?

Answer 1

no, there is only one attack phase per turn. But u can still untap the creature u just attack with, so it can block next turn.

Answer 2

No, you only get 1 attack per turn. All of your creatures that are attacking have to do so all at once. The key will not let you attack twice.

However, using the Galvanic key after you attack to untap your creature (which I'm assuming is an artifact creature) will make that creature available to block on your opponents turn.

Answer 3

No you can’t, because by the time you untap it, you have already declared an attack. After that attack, there are no more combat phases in the turn, so you can’t attack with the creature again.

However, if you find a way to make a second combat phase in the turn, then you can attack with all your untapped creatures again. Cards that do this include Breath of Fury, Relentless Assult, and Fury of the Horde.

Hope that helped!