Vilürst, Technicality Expert

Whenever a creature with Vigilance is tapped, a creature with Indestructible leaves the battlefield,
or a creature with Trample attacks and deals no
combat damage to a player, you may gain 1 life
and draw a card. (In the case of a Trample creature attacking, the trigger goes on the stack after the damage
step)
As you can clearly see here I am both right and wrong,
which according to article 277.8, rounds up to me
being completely right.