So you need to get specifically named Fusion Materials onto the field quick.
ETCO-JP071 融合派兵 Yuugou Hahei (Fusion Dispatch)
You can only activate 1 card with this card’s name per turn.
(1) Reveal 1 Fusion Monster in your Extra Deck, and if you do, Special Summon 1 of the Fusion Materials whose name is specifically listed on that card from your hand or Deck. You cannot Special Summon monsters from the Extra Deck the turn you activate this card, except Fusion Monsters.