Players can enter the event any number of times and all matches are played in a best-of-one format
If a spell has multiple targets but all of them are the same nonland permanent an opponent controls, Exterminator Magmarch's ability will trigger as long as another opponent controls one or more nonland permanents that spell could target
Some will also put the card in multiple sleeves to hide the quality of the card as well
However, these days many fakes can pass the light test, which makes it extremely unhelpful when you're already unsure about a card
This card stayed close to its inception
Landcycling Landcycling abilities, seen on cards with a basic land type such as plainscycling, islandcycling, swampcycling, and so on, allow you to discard a card to search your library for a card with the specified land type