2022-06-10 : If more than one {G} produced by a Jade Orb of Dragonkind is spent to cast a single Dragon creature spell, the delayed triggered ability associated with each mana spent will trigger. That creature will enter the battlefield with that many +1/+1 counters.

2022-06-10 : If the mana is spent on a Dragon creature spell, that creature will have hexproof as soon as it enters the battlefield. There is no opportunity to target the creature before it gains hexproof.

2022-06-10 : The delayed triggered ability will trigger whether Jade Orb of Dragonkind is still on the battlefield or not.

2022-06-10 : The mana created by Jade Orb of Dragonkind can be spent on anything, not just Dragon creature spells.