46DR mage umbora 55 melee rokken => 47 met AS 48 range kutul
1k hp
Introduction
The Tier 90 weapons 
Tidal Edge,
& 
Ocean Song are Best-in-Slot for most situations. But to obtain these items, you'll have to kill some of the strongest monsters in the game, and a lot of them too.
For the Tidal Edge, you'll need to kill (with Magic) 
Umbora for 100 
Tidal Edge Fragments.
For the
, you'll need to kill (with Melee) 
Rokken for 100 
Shockwave Fragments.
For the Ocean Song, you'll need to kill (with Ranged) 
Ku-tul for 100 
Ocean Song Fragments.
Because you will end up killing around 5000 of each, taking items with double droprate should be a priority if possible.
There are a couple of different orders in which these weapons are normally obtained. Basically, a Tidal Edge is heavily suggested for Rokken.
The most standard orders are:
Tidal Edge =>
=> Ocean Song
Ocean Song => Tidal Edge =>
Tidal Edge
To be able to idle Umbora with
, you'll need 46 DR assuming you have 1000 HP.
Umbora can be killed either with Ancient Magicks or with Normal Magic if you have an Ocean Song.