mtg card lists Effects Guide : r/mtg draw cards equal to the difference. Long List of the Ents

As of the Murders at Karlov Manor set in early 2024, Play Boosters have officially replaced both Set Boosters and Draft Boosters for all new standard-legal Magic sets

That makes the instant speed less significant

No, because the card should read, "Any one creature gets +2/+2 and gains horsemanship until end of turn." At the release of the set, this card said that the bonus was permanent, but the FAQ stated that it was, in fact, just another end of turn sorcery

Set: Reign of Jafar Printing: Normal Increase: +$5.73 Current Market Price: $6.43 One of the biggest new cards from Reign of Jafar, Rhino - Power Hamster, adds a big burst of power to the early game of Amber/Steel decks