Why do tanks need a +100 critical rate weapon?

Commonly OHS Tanks use Toy Hammer (+100 crit rate). I also saw a thread where someone asked if it was possible to make a katana tank with a Modestia (+100 crit rate), and now people have started to make bowgun tanks just because we got Diver's Bowgun (+100 crit rate).

May I ask. Why is necessary for a tank to have +100 critical rate ?

In my ignorance, I would say that it is useless because a tank isn't suposse to deal damage anyway... But I suposse this reasoning must be wrong.
So, What is it ? Semi DPS ? As a tank, Why should I use Diver's Bowgun for my Bowgun tank instead of Metal Bowgun or whatever that gives me more HP and resistances ?

Thanks for your replies.

 

To make sure your atk not miss (still can be evaded )
So that you can interrupt,prorate,do ampr,and ur atk skill hit the boss
Because if the atk miss you gain 0 aggro

 

Wow ok, I didn't know that about critical rate/hits...
Thanks bro.

 

Most tanks put everything on beefing up defence, hp and general survival. Hitting a target is another story altogether. So, to compensate most use these special items just to have the ability to hit the target solely for utility(interrupts, stuns and sorts), and for the general ampr and also the normal attack proration(even if the damage is 1 to nill it is still counted as a hit thus also counted as proration)

 

Well as others have said, you need 100 crit rate to be able to always hit your target (unless evaded). This is important as your best method of recovering MP as a physical weapon user is to hit the target. The only tanks that doesn't need to auto atk to recover MP are staff tanks, because they have MP charge and Maximizer. Though I haven't seen/been in a party with one lately. A staff tank may need crit rate though, to be able to land their interrupts (Shield bash, Shield cannon).

 

If i'm not mistaken, attacks that don't land don't generate aggro. this doesn't apply to guardian and perfect defense, which are amongst the most useful for tanks but you need MP for those and you can't always use MP charge in the middle of a battle, so best to have AMPR.for ampr, you need attacks to land.

 

I have a toy hammer, but I try not to use it if possible. But every players that wants to be a full-time tanker needs it as it guarantees hit, bosses that have particular pattern will need to have reliable interrupt skill hits aside frorm proration and mp recovery. For casual battles, you dont actually need it, really. For stationary bosses you could use Decoy shot for the mp recovery. With combination of skills crit buff and full crit plalyer- made swords, you could hit the enemy most of the time. Actually as a tank, you can use many different kind of sword as you are not restricted to be having optimum damage output.

 

Generate aggro and ampr

 

I just like seeing yellow crits
And all above replies are true.
Before the release of diver bg.my stats were
160 crit > vit
And i need to have a customed bg to have 100% crit
C15%c15 5vit% 10agro% (and someone bought it at cb lol)
But since diver arrived.i rchange my stats too 255mtl>vit
And now im happy ) .needs more ailment thou but its good

 

To not miss flinc, stun, ailments, also generating aggro + finishing these in 1 weap then we can use every add+armor+special we need

 

owo just use Kronus' Dark tanker build on youtube and never touch toy hammer again