Can Pact of the Chain Warlocks forgo one of their attacks to not break Invisibility

dnd-5efamiliarsinvisibilitywarlock

I was wondering if you use the second bulletin of the pact of the chain if it would break the invisibility spell.

Pact of the Chain feature in question

Additionally, when you take the Attack action, you can forgo one of your own attacks to allow your familiar to use its reaction to make one attack with its reaction.

Invisibility Spell

A creature you touch becomes invisible until the spell ends. Anything the target is wearing or carrying is invisible as long as it is on the target’s person. The spell ends for a target that attacks or casts a spell.

So my question boils down to does the invisibility spell break when you take the Attack action or when you attack?

Best Answer

Yes, this works.

First, the end condition for invisibility requires that you actually make an attack:

The spell ends for a target that attacks

And as you have observed, you may forego an attack to allow your familiar to attack instead:

you can forgo one of your own attacks to allow your familiar to use its reaction to make one attack with its reaction.

Here, the familiar is making an attack, not the warlock since that is what “forego” means, and an Attack action is different from an attack.

And if you somehow had an extra attack feature (through multiclassing, not Thirsting Blade), making the second attack for that is optional anyway:

Beginning at 5th level, you can attack twice, instead of once, whenever you take the Attack action on your turn.

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