
VigilanceVigilanceAttacking doesn't cause this creature to tap.
LandfallLandfallAbility word: triggers whenever a land enters under your control. — Whenever a land you control enters, exile target permanent card with mana valuemana valueThe total amount of mana in a card's cost, ignoring colour. A card costing has mana value 4. X counts as 0 except on the stack. 3 or less from your graveyard.
When this creature diesdiesA creature dies when it goes from the battlefield to a graveyard. Being exiled or returned to hand is not dying., put each permanent card exiled with it onto the battlefield under the control of that card's owner.
Hover an underlined rule to see what it means.
Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.