Reveal the top card of target opponent's library. If it's a land, you gain 1 life. Then that player shuffles. Draw a card at the beginning of the next turn's upkeep.
{1}, Pay 1 life: Prevent all damage that would be dealt to you this turn by a source of your choice that shares a color with the mana spent on this activation cost.
When Protocol Knight enters the battlefield, tap target creature an opponent controls. Put a stun counter on that creature if you control another Knight.
"Ingress without proper writ of extraplanar intent? Unacceptable!"