For example, if you're instructed to draw two cards and you replace the first draw with a dredge ability, another card with a dredge ability (including one that was milled by the first dredge ability) may be used to replace the second draw.
It can quickly go infinite when casting colorless spells paired with a card like Paradox Engine
To this day, none of the No
If we have so many Phyrexians, why not compleat our other cards with Encroaching MycosynthEncroaching Mycosynth and Liquimetal TorqueLiquimetal Torque
(Seriously, go read Mark's article about the partner mechanic.) I thought you said this was really challenging
Throughout this article, we explored how thickness ranges from standard 14pt cards (0.356mm) to ultra-premium 48pt options (1.219mm), each serving distinct purposes