Blue-Eyes Shining Dragon is an effect monster card that can be summoned by tributing a Blue-Eyes Ultimate Dragon, which in turn is a fusion of three Blue-Eyes White Dragon cards.
The ATK of this monster is increased by 300 points for each dragon-type monster on the Graveyard. This is especially useful since you will supposedly have at least four of them in there. In addition, it is not affected by effects of Spell, Trap and Monster cards.
- See more at Blue-Eyes Shining Dragon