I got my first critical hit with this bad boy! Awesome weapon,best in the game

https://www.dndbeyond.com/magic-items/vorpal-sword

This is better 

Quote from nombit >>

https://www.dndbeyond.com/magic-items/vorpal-sword

This is better 

 well duh its legendary. But if i chose, it would be the flame toungue. FIRE SWORDS MAN! Right in there

think this would be fair on a spear or lance/glave

How much force do you think it would take to break this weapon?

I have a flame tongue

What does attunement mean for this weapon?

mine to

I got this as my first magic item then proceeded to piss off the dm by one shoting the final boss on a surprise attack lol.

Can you activate flame togue while raging?

cool weapon

Quote from Eldritch_Queen >>

Ah, this was my very first magic item. I've had so much fun using this thing.

 Same

Don’t forget that a +3 weapon is also going to add to your hit AS WELL as the damage. 

Magical weapons are generally indestructible by normal means, as far as I’ve learned. Normal force, however much, would be inadequate to destroy this. It should also never tarnish or discolor, nor should it gather dust. 

Of course. You just can’t use two bonus actions in the same turn. Once you rage, you continue to be raging until it’s dropped by going unconscious, not attacking or being attacked, or dying etc. You don’t have to re-activate rage every turn. If you’re a barbarian, as soon as you think combat is going to begin, you can try to activate the sword. I don’t think you need to do anything special to maintain the flame beside hold the blade. It’s probably pretty threatening though, so if there WASNT going to be combat, there probably will be now. Stating to the DM that you want to activate it before combat if possible is probably helpful, and hopefully they’ll let you, otherwise you miss out on a lot having to either rage or activate this during your first then. 

Quote from EckhartPublicLibrary >>

Don’t forget that a +3 weapon is also going to add to your hit AS WELL as the damage. 

 Sure, but a +3\+3 sword is Very Rare, whereas this "Rare" magic item does its {weapon} damage plus ~7 (2d6) Fire damage. So, there's no + to hit, but it is more than double the damage bonus (plus an improved torch), & still doesn't have limited uses. It's closer to the power level of a +3\+3 than a +2\+2; yet it's got merely a "Rare" rating. Kinda O.P. for it's rarity level!

Gameplaywise in D&D beyond how do you activate/disactivate the "ablaze" feature ? (In case you're fighting against something that absorb fire damage for exemple)

Quote from LZiese >>

So in terms of role play... how does the player learn the command word? Trial and error? Magically via Attunement? After a long quest? Paying off a forge cleric or an artificer?  Love suggestions 

 I believe you usually learn any command words when you attune to the item

I'm planning on making this into a bow, any tips?

Quote from BillBattleaxe >>

I'm planning on making this into a bow, any tips?

 Use +3 arrows.