Its a great early play, especially combined with something like Sol Ring, which can get it in play early to capitalize on your opponents various early-game drops when they cant pay the
Bear in mind as well that if your opponent doesnt find a way to deal with Jafar on their turn, which is definitely a risk with their hand of seven new cards, then you can just sing A Whole New World again if you drew it from the last one
The sudden life gain also puts you out of range of being killed by a well-timed swing from your opponents, giving you the breathing room to finish them off with your growing army
This could lead to many of these cards maintaining a solid secondary market value
However, that -1 ability seems somewhat weak if youre behind
Goblin Rock Sled Rarity: Common TYPE: Creature SUBTYPE: Goblin CMC: 2 Mana cost: USD: $0.90 EUR: 0.10 TIX: 0.00 EDHREC RANK: 30477 (3/1) Trample This creature doesn't untap during your untap step if it attacked during your last turn