Blessings of Danu

You beckon upon Danu to bless up to five creatures of your choice within range not including yourself. Whenever a target makes an attack roll or a saving throw before the spell ends, the target can roll a d4 and add the number rolled to the attack roll or saving throw.

However if a target that has been blessed by Danu is also on any land that has been graced by Danu they roll a d6 instead of a d4.