zombie deck 2017 yugioh Complete Custom for Yu-Gi-Oh! may be 1st or Unlimited Edition Yugioh Zombie Deck - Edison

This card can also banish itself from the Graveyard to put a free Flame Swordsman Fusion Monster on the board by recycling its materials, though it destroys itself during the End Phase

Or, if you want to just be pragmatic, give you extra cards to keep summoning with

These monsters include powerful interruptions, crucial combo extenders, and frustrating floodgates that often lock one's opponent out of the game

UR Ultra Rare Amazoness Onslaught X TRAP Continuous Once per turn, during the Battle Phase: You can Special Summon 1 "Amazoness" monster from your hand, and if you do, it gains 500 ATK until the end of this turn (even if this card leaves the field)

We cant know for the sure the exact reasoning