Hero's Arrival

Kicker - Tap an untapped creature you control.
Search your library for a creature or planeswalker card, reveal it, and put it into your hand. Then shuffle your library. If Hero's Arrival was kicked, you may pay {x}, where X is the revealed card's converted mana cost. If you do, put it onto the battlefield instead.
The entire plane of Resroka felt Tigara's arrival.