When a hidden card is revealed or a unit is played, does it enter the battlefield ready or exhausted?

Ruling: Units inherently enter the battlefield exhausted when played or revealed from hidden. However, specific card text can override this default rule.

Nuances:

• Sprite Call specifically states the token enters ready, so it comes in ready despite the general rule
• Revealing a hidden card counts as playing it, so the exhausted rule applies unless the card text says otherwise