Ariz. Rev. Stat. § 14-2302
A. Except as provided in subsection D of this section, if a testator fails to provide by will for a child who is born or adopted after the testator executes the will, the omitted child receives a share in the estate as follows:
2. If the testator had one or more children living when the testator executed the will and the will devised property or an interest in property to one or more of the then-living children, an omitted child is entitled to share in the testator's estate as follows:
D. Subsection A of this section does not apply if either of the following is true: