[ Rock / Fusion / Effect ]1 Rock monster + 1 Level 4 or lower monster in your opponent's GY
Must first be Special Summoned with "Fossil Fusion".
If this card attacks a Defense Position monster, inflict piercing battle damage.
You can banish this card from your GY; add 1 "Fossil Fusion" from your Deck to your hand.
You can only use this effect of "Fossil Dragon Skullgar" once per turn.
ATK/ 2500
DEF/ 0