Assassin's Creed in fantasy fanfic

the main character has the abilities and skills or can gain the abilities and skills from all of the Assassin's Creed games he can also get the weapons and equipment from all the games as well for example he can get 4 Flintlock pistols from the Assassin's Creed Black Flag and use them and the special Assassin's Creed hidden blade with Flintlock gun from Ezio he can also purchase the armor or artifacts from the game as well it's been a while since I played the Assassin's Creed game so I don't know the specifics of what the apple of Eden can actually do so you get the idea he can also purchase artifacts from the games and I was thinking like the starter world can be danmachi the witcher or any other fantasy type world like one of the authors own creation also he will have the ability to summon phantoms of Assassin's from the series similar to how you call in your assassin team in one of the games later on he can summon larger groups as well as partial phantoms of things you use in the game like black flags ship he can summon the cannons for a normal shot or heavy shot as well as other parts of it to do other things like the swivel guns, ram, and barrel bombs.