RUMBLE, Limits Broken

Impact 2, First Strike, Hexproof
When I deal damage to a player, my owner
searches their library for a Yordle and a Vehicle,
adds them to their hand, and then shuffles the
library.
Yordles and Vehicles in my owner's hand cost {1} less to cast.
Reveal any number of Yordles and/or Vehicles in
hand to give all of my owner's Yordles and
Vehicles +1/+1 this turn for each one.