Give a stream of consciousness and then the final answer. One player is chosen to be the dealer (alternately, the deal can rotate to the left after each hand). The dealer shuffles the deck and deals 10 cards, face down, one at a time, to each player. Players hold their 10 cards in hand so that the other players can not see them. The remaining deck is placed face-down in the center of the play area to become the draw pile. A wild card turned up goes to the next player. The dealer then turns the top card of the draw pile over and places it next to the draw pile, to become the discard pile. During the first hand, all players try to complete Phase 1. Play consists of;

Answer this question: how many cards are dealt out in phase 10?
This is the relevant information: The dealer shuffles the deck and deals 10 cards, face down, one at a time, to each player.
So, the final answer is 10.