Karn, Scion of Urza (Promo Pack) (Dominaria): Dominaria Promos Scourge You may have Vesuva enter

You may have Vesuva enter the battlefield tapped as a copy of any land on the battlefield

instead that card is revealed and put on the bottom of that player's library

When Worldspine Wurm is put into a graveyard from anywhere

amass Orcs 1

Karn, Scion of Urza (Promo Pack) (Dominaria): Dominaria Promos Scourge You may have Vesuva enter[+1]: Reveal the top two cards of your library. An opponent chooses one of them. Put that card into your hand and exile the other with a silver counter on it. [1]: Put a card you own with a silver counter on it from exile into your hand. [2]: Create a 0 0 colorless Construct artifact creature token with "This creature gets +1 +1 for each artifact you control."