LED and Ad Nauseam during draw step.

[sclabman]

Situation: you have two LEDs on the table and an Ad Nauseam on the top of your library. It is your upkeep.

Is it possible to crack the LEDs for mana and use this mana to cast Ad Nauseam during your draw-step?

[3eowulf]

No, you can't.

If you crack the LED in your upkeep your mana will be lost when you change step (this used to be different before, you could retain mana in pool between steps).
In the draw step you receive priority only after drawing, so it will be to late to use the LED since you'll have the Ad Nauseam in your hand.

[sclabman]

Thank you very much.

[cdr]

Yep, that was a trick lost to Ad Nauseam players when when mana pools empty changed.