Just before Cleffas release, most games were decided on the first turn, either by a turn 1 win or from the player going first being able to play a myriad of cards that essentially left the other player empty-handed
He's also genetically modified by a "goblin formula." In the end, we wanted cards with "Spider" and "Goblin" in the title to have those subtypesit just opens up a lot more cool interactions, both within the set and Magic as a whole
Consider the lasting appeal of the Pokmon franchise
Spiders are a MTG creature type that's had a sprinkling of creatures in most every set
"Number 16: Shock Master" had the powerful effect of detaching 1 XYZ material from it and negating all the effects of 1 card type (Monster, Spell or Trap) until the end of the opponent's next turn
UR Ultra Rare Ninjitsu Art of Dancing Leaves X TRAP Continuous Activate this card by targeting 1 "Ninja" monster or 1 face-down Defense Position monster on the field