You can discard 1 card; Special Summon this card from your hand, also you cannot Special Summon monsters from the Extra Deck for the rest of this turn. If this card is Tributed for a Tribute Summon: You can look at your opponent's hand and banish 1 card from their hand until the End Phase. You can only use each effect of "Berlineth the Firestorm Vassal" once per turn.
Can be Special Summoned by discarding 1 card as a cost.
Effects allow you to banish 1 card from your opponent’s hand until the End Phase.
Weak ATK and DEF stats.
You can only Special summon 1 of this monster once per turn.
You cannot perform Special Summon from your Extra Deck if this monster was Special Summoned.
Before your Battle Phase, you can use Berlineth the Firestorm Vassal’s effect to banish possible Kuriboh or Sphere Kuriboh from your opponent’s hand, to stop them from jeopardizing your attacks.
Tribute Summon Thestalos the Fire Monarch with this card will activate this card's effect, you can look at your opponent's hand and banish a card from their hand, thus increasing the odds of discarding a different card in their hand that can be discarded. Pyrorex is able to be Special Summoned when your graveyard has exactly 5 FIRE monsters, so you can discard FIRE monsters in order to Special Summon Berlineth the Firestorm Vassal, in order to speed up this process.
There is no right or wrong. But I do include this and thestalos in a molten destruction hazy sphinx deck. Works great. Especially if you don't have flame tiger/ soul exchange and needed a tribute fodder for sphinx. This is a good substitute too. Discard a fire monster>tribute summon sphinx>revive from grave
i've been running 2 to 3 of this in my hazy deck because i don't have soul exchange and it's been great so far! hell, i even changed skill from Aroma Strategy to Balance! 90% of the time i start with it and another hazy monster in my hand.