Cantrip Combatant (5e Feat)

Prerequisites: The ability to cast spells.
You are trained in the use of cantrips in combat and gain the following benefits:

You can use your Dexterity modifier, instead of your Intelligence, to make ranged spell attacks and to calculate the spell save DC of your cantrips.

If you are able to make more than one attack when you take the attack action, you can cast a cantrip that deals damage with each of the attacks. When doing so, the cantrip wont benefit of your level improvement, being cast as if you were at 1st level.

If you are able to make more than one attack when you take the attack action, when you use your action to cast a cantrip that requires a ranged spell attack, you can add your spellcasting ability modifier or your Dexterity modifier to the damage of that attack.