If a legendary permanent or an artifact entering or leaving the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time
It's a similar process to use Gray Viking Games for decks: The best thing about these is that you can browse the decklists on the site to see exactly what you're getting
This first entry, Mickey Mouse, True Friend, is one of the simplest cards in The First Chapter
of course, these days its easy to collect a set of four Mythic Rares if you can afford to thanks to sites such as Cardmarket, eBay and others but back when MTG was first released, it wasnt as straightforward to find specific cards in the wild
You can also use this card to pay for any effect that would make you discard it or sacrifice it, returning it back to your hand when you get the chance
Critical Hit: Wilson, Refined Grizzly Who doesnt love a bear as a companion