Goblin dirigible

[Joedillard]

Would I have to tap the 4 mana to untapped 'Goblin dirigible' if I have 'unwinding clock' in play?

[BlackJester]

Would I have to tap the 4 mana to untapped 'Goblin dirigible' if I have 'unwinding clock' in play?

{Goblin Dirigible}
{Unwinding Clock}
You will if want to untap it on your turn. But it'll untap on your opponent's turn for free.

[XFatal]

After you attacked with it, it would untap on the next upkeep, so it would already be untapped on your upkeep.

[Joedillard]

Thank u guys