Income Take 1 coin (always available, no counter)

Foreign Aid Take 2 coins — blockable by a Duke

Tax [Duke] Take 3 coins (challengeable)

Steal [Captain] Take 2 coins from a player — blockable by Captain or Ambassador

Assassinate [Assassin] Pay 3, target loses 1 influence — blockable by Contessa

Exchange [Ambassador] Swap cards with the deck (challengeable)

Coup (7+ coins) Force a player to reveal a card — cannot be blocked or challenged

Block / Challenge React after an action is declared — before it resolves

Goal Be the last player with at least 1 face-down card