Oath of Loyalty (Red)

This may only be played if it's the first action of your turn.

When this is played, until end of turn, you may only play cards that are Draconic.

Go again

Rulings

From the The Hunted release notes

Oath of Loyalty triggers when it is played but before it resolves on the stack and becomes an attacking card. When the triggered effect resolves, a continuous effect is generated where, for the remainder of the turn, the only cards you may play are cards that are Draconic. This only affects cards that are played, not cards that are activated. I.e. you may still activate cards that do not have the Draconic talent.
If an effect is active that restricts cards being played to only Draconic cards (e.g. Oath of Loyalty, Coat of Allegiance), continuous effects that cause cards to gain the Draconic supertype (e.g. Fealty, Brand with Cinderclaw) allow you to play a card without the printed Draconic supertype (i.e. a generic attack action card) while under that restriction. That card would gain the Draconic supertype as part of playing the card from those types of continuous effects.
If an effect is active that results in cards you own to lose their talent supertypes (i.e. Erase Face) you would not be able to play any cards with the printed Draconic supertype while under Oath of Loyalty’s restriction.
If an effect is active that results in cards you own to lose their talent supertypes (i.e. Erase Face) and an effect is active that restricts cards being played to only Draconic cards (e.g. Oath of Loyalty, Coat of Allegiance), continuous effects that cause cards to gain the Draconic supertype (e.g. Fealty, Brand with Cinderclaw) would allow you to play any card in this scenario. This is because even though a card would lose their supertypes, it would gain the Draconic supertype as part of playing the card from those types of continuous effect (and you can’t lose a gained property).

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)