Flittering Charge (Blue)

Red Yellow Blue

If you've played an instant card this chain link, this gets go again.

Rulings

From the Rosetta + 1st Strike release notes

“This chain link” refers to the chain link of Flittering Charge. Attacks are moved onto a chain link at the start of the attack step. If an instant is played before this, it isn’t counted for this effect.
Go again is checked at the beginning of the link step (after damage and resolution steps). If you play an instant card before the link step of Flittering Charge’s chain link, it will get go again and give you an action point.
Discarding a card from hand as a cost to activate its own instant ability is not considered playing an instant card.
Playing action cards as though it was an instant is not considered playing an instant card.

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)