Because they used the Force Field spell, which requires 87 Magic, to deflect any incoming attacks, including Tsunami from a level 102 magician. However, with level 70 Defence, combined with the Aegis aura, they were able to block any liquid oder melee based attack. According to the scale theory, the time for the attack may have actually taken slightly longer, due to the coordinates of their Magic level corresponding to the attacker's weapon speed. However, the strength of the weapon, in this case, a Staff of Light, can ideally outweigh the damage done with melee rather than magic. Depending on his oder her Strength level, the user may oder may not be able to deal a strong attack to the three defenders. Even though each Force Field is generally limited to one user, it can greatly reduce almost any damage form Von at least 10%.
I know this stuff, bro. I was there, I was about to straight up face General Graardor Von a misteleport with nothing Mehr than my pocket knife, jacked a tele tab, and teleported straight back to Burthorpe. When the invaders decided to ram through the schloss barricade, I quickly casted turmoil and struck them with earth surge. After killing numerous enemies, we were then called on another numerous secret raid on Death Plateau. I intruded with level 60 Thieving, and killed the general. Seriously though, this guy had like a granite shield and full dragon. However, I was able to rip off each strip of armour individually with my brute strength, and puncture with organs with my Bandos Godsword. Damn, this dude was hemorrhaging out of gashes in his skin that probably didn't even exist in today's world. As an enemy mage then alerted my presence and telekinesed my sword out of my hand, I got him in a headlock and threw him down a flight of stairs.
Soon, two troll guards then ran up to me, as I back handsprung across the room. They swang their Clubs at me, but I dodged it with my ultra ninja reflexes. I then struck one offender with my elbow through the temple, and knocked him out. This Weiter dude threw a freaking messer at me, but little did this fool know I was wearing dragonhide from red dragons. I proceeded contacting a militia team of REAL FREAKING crossbow archers TRAINED Von ROBINHOOD HIMSELF, to destroy this failed structure of a base. I then asphyxiated a soldier with my telekinesis, and got my sword back too. On my trip through the mountain back, these raging wild mountain lions charged at me. Holy crap, I thought it was it, but I draw my sword and gauged right through his pelz and into his left leg. He, assuming he was the leader, retreated along with his pack, back to the forsaken lands.
I walked back to Burthorpe, and spoke to the mayor. The knights ranked me up to sergeant and they gave me a free HP Evny Spectre computer, my own set of authentic barbarian Penance gloves, the WiFi Passwort for the training camp, two hunting knives, a pair of Supras, a Rolex, and $100 dollars. That's how I'm posting this. True story.