Ars Telum, the Unstoppable

Lifelink, Haste
Whenever you gain four or more life, you may
draw a card.
Whenever Ars Telum, the Unstoppable deals
combat damage to a player, you may draw a card.
{r/w}{b/r}: Ars Telum, the Unstoppable deals
2 damage to any target. You gain one life.