MoniGar is a magic Runeword created by combining a Moni Rune of Ritual and a Gar Rune of Invocation.
How to Create MoniGar
You can create MoniGar by adding the magic Moni Rune of Ritual and the magic Gar Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Moni - Cast a Skill after moving.
(Cooldown: 0.25 seconds) (25)
Gar - Gain 2.5% Critical Strike Chance for 5 seconds, up to 25%. (25)
Overflow
MoniGar can not overflow because the amount of Offering you receive from the Moni Rune exactly fills the required Offering of the Gar Rune.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.