Sonata Arcanix (Red)

Reveal the top X+3 cards of your deck.

For each non-attack action card revealed this way, put an attack action card revealed this way into your hand. Then deal arcane damage to target hero equal to the number of cards put into your hand this way. Shuffle, then banish this.

Go again

Rulings

From the Monarch release notes

You choose what you want X to be before applying cost reductions then paying the costs.
X can be 0.
The value of each X in Sonata Arcanic’s cost must be the same.
You must pay double the cost of X. For example if you want this card to reveal 2 + 3 cards. You need to pay 4 resources.
If there are less cards in your deck than the amount of cards to be revealed, you reveal your whole deck.
The arcane damage is a single source of damage. For example if Sonata does 2 arcane damage you would require arcane barrier 2 (or two arcane barrier 1) to fully prevent it.

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)