If an effect would shuffle cards into a deck but there are no cards that meet the requirement and zero cards are to be shuffled in, the deck is not shuffled
C Common Zubaba Knight X EARTH Level 3 [ WarriorEffect ] ATK 1600 DEF 900 At the start of the Damage Step, if this card attacks a face-up Defense Position monster: Destroy that monster
With flying and trample, Hydroid can dominate any battlefield if someones willing to shell out the $20 to pick it up
While probably not good enough on its own, you can put it into a deck with another FoGP abusing Pokmon (Yanmega comes to mind) for fabulous results
Legendary Creature - Human Warlock Color tag templates(None) Savior of Ollenbock Training (Whenever this creature attacks with another creature with greater power, put a +1/+1 counter on this creature.) Whenever this creature trains, exile up to one other target creature from the battlefield or creature card from a graveyard
This is where search optimization comes into play