If you have "Scrap Beast" on the Field, target it. Then, send "Scrap Chimera" to the Graveyard, draw 1 card and destroy "Beast"; activate its effect and add "Scrap Chimera" to your hand. Then Normal Summon "Scrap Chimera", Special Summon "Beast" and Synchro Summon "Scrap Dragon".
Use this card to destroy "Scrap" monsters that have the effect of add a "Scrap" monster from your Graveyard to your hand, such as "Scrap Beast" or "Scrap Worm".
Chain this card to the activation of an effect that would destroy a "Scrap" monster, such as those of "Bottomless Trap Hole" or even the self-destruction effect of "Scrap Goblin" or that one of "Scrap Orthros" and "Scrap Breaker", so that you will lose a monster, but take an advantage from that loss.
This card combos well with "Scrap Golem" or "Scrap Chimera" as you can summon back the destroyed "Scrap" monster, or with a free monster you got with either of their effects.
This card can also be used to trigger the Special Summon of a "Green Baboon, Defender of the Forest" from your hand or Graveyard by destroying either "Scrap Beast" or "Scrap Chimera".