Im looking to trade my dread shield+6 for 900mil or for an hb+7

Dread Shield+6

max durability:18 000
defense ability:345
defense ability dagger : 7
defense ability axe : 15
defense ability spear : 15
health bonus : 4
resist to flame : 25
resist to lightning : 25

its best shield in the game and who ever gets it and upgrades it to +7 would be even better