Sedgemoor Witch + Chain of Smog

Sedgemoor Witch
Chain of Smog

Requires
Sedgemoor Witch must be on the battlefield. Chain of Smog must be in hand. Mana needed: 1b
Steps
  1. Cast Chain of Smog by paying 1b, targeting yourself.
  2. Sedgemoor Witch triggers, causing you to create a 1/1 Pest creature token.
  3. Resolve Chain of Smog, discarding two cards and choosing to copy it, targeting yourself with the copy.
  4. Repeat from step 2.
Results
Infinite creature tokens. Infinite ETB. Infinite magecraft triggers.