No--You are expanding it to where it should not go.
Asking others here on earth to pray for us is OK, right?
Yes. They're alive.
And the prayer of a righteous man “availeth much.”
Yes it does.
So it makes perfect sense to ask the righteous, glorified saints in heaven to pray for us.
No it doesn't. You are again extrapolating beyond the reasonable.
Deu 18:10Scripture says that we should not try to converse with those who have already graduated from this life. Christ did not repeal this prohibition, therefore it is still in force.
Let no one be found among you who sacrifices his son or daughter in the fire, who practices divination or sorcery, interprets omens, engages in witchcraft,
Deu 18:11
or casts spells, or who is a medium or spiritist or who consults the dead.
Deu 18:12
Anyone who does these things is detestable to the LORD, and because of these detestable practices the LORD your God will drive out those nations before you.
We should not pray to Mary.
Are the glorified saints in heaven dead?
Is asking the saints in heaven to pray for us the same thing as conjuring spirits?
In Revelation 5:8, the saints in heaven offer our prayers to God.