Elden Ring PC | Ancient Hero of Zamor of Sainted Hero's Grave boss fight solo on NG

Drops:
24,000 runes
Ancient Dragon Knight Kristoff Ashes

Ancient Hero of Zamor
"Ancient Hero of Zamor is a Field Boss in Elden Ring. Ancient Hero of Zamor is an agile swordwielder that uses frost magic and is found in multiple locations. This is an optional boss, as players don't have to defeat it to advance to the Legacy Dungeon."
https://eldenring.wiki.fextralife.com/Ancient+Hero+of+Zamor

Ancient Dragon Knight Kristoff Ashes
"Ancient Dragon Knight Kristoff Ashes is a Spirit and Summon in Elden Ring. Ancient Dragon Knight Kristoff Ashes are used to summon the spirit of Kristoff, wielding a greatshield and a spear imbued with lightning."
https://eldenring.wiki.fextralife.com/Ancient+Dragon+Knight+Kristoff+Ashes

Sainted Hero's Grave
"Sainted Hero's Grave is a Location in Elden Ring. The Sainted Hero's Grave is found in Altus Plateau, west of Rampartside Path. It is recommended that you bring 2 Stonesword Keys to this location in order to obtain all the items available."
https://eldenring.wiki.fextralife.com/Sainted+Hero's+Grave