I remember there was a stone/wood golem, an ice bird, and a yellow robot, and the main villain uses a green bug and each monster is connected to the seal/rune.
Maybe Di-Gata Defenders (2006).
Di Gata Defenders was a television show that aired throughout the years 2007 2009 in various different continents. The show consisted of 6 Protagonists. and various Antagonists. The Di Gata Defenders were 4 teenagers who were set to defend their realm of RaDos against all the forces of evil that wish to destroy the peace. The 4 Defenders; Melosa, Seth, Kara, and Erik were the first characters introduced. The 4 managed to gain two extra friends. One loyal friend, Rion who happens to be the youngest after Kara is finished off.Rion was made a defender. They also managed to make a on-off friendship with the damaged "son" of one of the antagonists, the sons name is Adam. Adam decided not to become a defender but instead sent out to search for his Bio parents.
You can see the dice covered in runes in the opening, as well as an ice dragon (not a bird), the yellow robot Robotus, and Kragus the rock giant.