Do You Untap Before Your Upkeep?

Upkeep Step - This happens directly after untap and is the first time players may take action during a turn. Abilities that trigger at the beginning of upkeep go on the stack, and then players can play instants and abilities. ... Once that is done, both players may play spells and abilities.

Can you cast between untap and upkeep?

You can't cast it during the untap step, neither player receive priority then. However you can cast it during your upkeep step. Players receive priority to cast spells and activate abilities during the upkeep, which is before the draw step.

Can you do anything before untap step?

The most common question about this is, “Can I do something in my untap step before I untap?” And the answer is “No.” Your last chance to do anything before you untap is your opponent's end step. Once your turn starts, the first thing that happens is you untap, then you move to your upkeep.