They're able to pivot and continue on with their big combo through another avenue
This sets up great combo turns by bouncing stax pieces, then giving you an unfettered turn after
The reason for not writing the high stats as original stats is both to constrain them within the long-standing design choice to keep monsters' maximum original stats under 5,000, and also because actually writing these stats, as is the case with the Don Thousand/Monster B and Don Thousand/Monster C cards in the Boss Duel event, would squeeze the number font to comically narrow widths
While it does the usual when this creature dies, return it to the battlefield, it also deals one damage to each opponent, which is a neat little twist
Funnily enough, no exile is not the same as outside the game. Before the rules update for Magic 2010 , you could theoretically use cards like Wish to pull cards from outside the game which included the old removed from the game rule