Genex Ally Axel (STBL-EN099) - Starstrike Blast Unlimited

1 Genex Tuner + 1 or more non-Tuner monsters. // Once per turn, you can discard 1 card to select and Special Summon 1 Level 4 or lower Machine-Type monster from your Graveyard. Double that monster's ATK until the End Phase. It cannot attack your opponent directly, and is removed from play during your End Phase.