Requires

Chain of Smog must be in hand. Lorehold Pledgemage must be on the battlefield. Mana needed:

Steps

1. Cast Chain of Smog by paying , targeting yourself.
2. Lorehold Pledgemage triggers, giving itself +1/+0 until end of turn.
3. Resolve Chain of Smog, causing you to discard two cards and copy Chain of Smog, targeting yourself.
4. Repeat from step 2.

Results