Does LeBlanc's hold effect "Deceiver" trigger before or after the draw phase?

The "Deceiver" ability (triggered by LeBlanc when you hold a battlefield) occurs during the Beginning Phase, which is before your Draw Phase.

According to the game's turn structure:

1. Beginning Phase: This phase includes the Scoring Step, where you "hold" battlefields you control.
2. Trigger: LeBlanc's "Deceiver" ability triggers "When you... hold." This trigger is added to the chain during the Scoring Step of the Beginning Phase.
3. Resolution: The ability resolves during the Beginning Phase.
4. Channel Phase: This follows the Beginning Phase.
5. Draw Phase: This occurs after the Channel Phase, where you perform your standard turn draw (Rule 315.4.b).

In summary, the holding action (and any triggered abilities that result from it, like LeBlanc's) happens entirely within the Beginning Phase, while your standard turn draw happens later in the Draw Phase.