Terra Magica

You create a 15-foot-radius magical circle centered on a point within range. Until the spell ends, the circle empowers every creature within it.

When a friendly creature steps into the circle it gains the following effects:

• Advantage on spell attacks
• Advantage on saving throws against spells and other magical effects
• Every spell of 5th level or lower that deals damage, deals an additional 3d10 of the spell's damage type

You can use a bonus action to move the magic circle up to 30 feet.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, each spell of the new spell slot level or lower, gains an additional 1d10 for each slot level above 5th.