Sofia the Programmer

Deathtouch

Whenever you cast an instant or sorcery, you may exile a card from a graveyard. If you do, create a tapped colorless artifact token named “Exploit” with
{t}, Sacrifice this artifact: Target opponent loses 1 life and you gain 1 life.
At the beginning of your upkeep, if you control three or more Exploits, you may cast a card exiled with Sofia, the Programmer without paying its mana cost.

The code is law. And I write the laws.