If you throne room a throne room you play an action doing it twice and then play another action and do it twice.
Dominion throne room cellar.
Dominion base like most other 2 actions cellar is a versatile card.
Cellar council room laboratory militia mine moat moneylender thief throne room woodcutter.
Cellar works really well with other cycling cards including terminal ones.
It allows you to play another action card from your hand twice as if you had a village and two copies of that action card.
You completely resolve playing the action the first time before playing it the second time.
Mid game it fixes unlucky draws in order to set up your engine.
The second use of the action card doesn t use up any extra actions you have.
Additional rules from the rulebook you pick another action card in your hand play it and play it again.
Cellar is an action card from the base set that acts as a sifter.
Early game it cycles through your deck so you can quickly play your newly bought cards.
Throne room is an action card from the base set.
3 or more is optimal.
Cellar has a net effect of 1 card so discarding as many cards from your hand is beneficial.