Sting of Sorcery (Blue)

Go again

Attack action cards you control get "When this attacks, deal 1 arcane damage to target hero."

At the beginning of your end phase, destroy this.

Rulings

From the Tales of Aria release notes

The arcane damage is dealt by the attack action card that has the triggered ability “When you attack with this, deal 1 arcane damage to target hero.”, it is not dealt by Sting of Sorcery.
Arcane damage effect is triggered and dealt when the attack action card resolves and becomes attacking, not when it is played.

Keyword notes

Go again - Go again allows multiple actions to be played in a turn when usually playing an action with use up your action point, and therefore end your turn. A card with go again gives the controller of that card or activated ability 1 action point when it resolves.

When an action with go again resolves, its controller gains 1 action point.
Multiple instances of go again on the same card or activated ability do not stack. If a card or activated ability has multiple instances of go again when it resolves its controller gains 1 action point only.
If an action with go again does not resolve, its controller does not gain 1 action point.
You cannot reveal a card with no to Belittle. The card must have a value to its power that is 3 or less. (0 is a value)