Santa Claus, Sleigh Rider

When Santa Claus, Sleigh Rider enters the battlefield or attacks, for each opponent you deemed Nice, you draw a card and create a
treasure token. For each opponent you deemed Naughty, that player discards a card and creates a Coal token.
You and Nice players draw an additional card during their draw step.
Naughty players discard a card and creates a Coal token at the beginning of their end step.