[Guild Wars iOS] War of the Heavens

[levilee]

Is this suppose to happen? Another guild's sentinel I fought had seriously high atk ( wing wurm armor) , basically he jus 2 wack my black kals+(lvl 63) and I lost. Is not sentinels only bonus is the 50% def bonus when in war? That guy that I fought has like 50% ATK AND DEF boost. Cos after my black kals+ is downed in 2 whack by , my other 2 knights got 1 whack and they jus died, no critical hit or what so ever. I was really amazed. What jus happened?

Edit : if needed info, im lvl 120. Line up : (me) mantle of beast+ VS wing wurm, (me) black kals+ VS wing wurm/half dragon( 1 whack from wing wurm and 1 wack by half dragon and I'm dead) , sky guardian VS half dragon( 1 whack KOed) his 3rd was a black frost raiment. This is m 2nd line up( fought him twice) first line up is the scenario happened stated above.