+scrapper (9)
Whenever Boomer Scrapper enters the battlefield or attacks, you lose 1 life and create a Junk token. (It's an artifact with ", Sacrifice this artifact: Exile the top card of your library. You may play that card this turn. Activate only as a sorcery.")
Whenever a token you control leaves the battlefield, put a +1/+1 counter on Boomer Scrapper.
, , Sacrifice Elvish Scrapper: Destroy target artifact.
When Gruul Scrapper enters the battlefield, if was spent to cast it, it gains haste until end of turn.
Whenever a nontoken artifact enters the battlefield under your control, exile a random nonland artifact card with lesser mana value from your library. You may cast that card until the end of your next turn.
Menace
You may exert Khenra Scrapper as it attacks. When you do, it gets +2/+0 until end of turn. (An exerted creature won't untap during your next untap step.)
: Narstad Scrapper gets +1/+0 until end of turn.
Double strike (This creature deals both first-strike and regular combat damage.)
When Scrapper Champion enters the battlefield, you get (two energy counters).
Whenever Scrapper Champion attacks, you may pay . If you do, put a +1/+1 counter on it.
Wither (This deals damage to creatures in the form of -1/-1 counters.)
Whenever Tuktuk Scrapper or another Ally enters the battlefield under your control, you may destroy target artifact. If that artifact is put into a graveyard this way, Tuktuk Scrapper deals damage to that artifact's controller equal to the number of Allies you control.
Gatherer works better in the Companion app!
(two energy counters).. If you do, put a +1/+1 counter on it.