Once your robot army is built, start reloading your creatures with counters and swing for lethal
Brawl Not Legal Vintage Legal Timeless Not Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Notes and Rules Information for Sin, Unending Cataclysm: Sin's last ability puts all counters that were on Sin onto the target creature, not just its +1/+1 counters
Sometimes you'll play a few creatures that cost only one mana, but not often
Eventually, with a little help, it turns into a Double Strike monster that pumps itself and hits for incredible amounts of damage
If I was making budgetless checklist, then I would actually recommend more than just two tutors for your average deck
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