Baal
Demon Baal 悪魔バアル  

Nicknames  
Exclusive to:  
Rarity (レア)  → 
Types 種族 
Demon 悪魔 
Max Stats ステータス情報 
Lv:120 HP:2775 ATK:1526 DEF:1404 
Cost/Orbs (コスト/オーブ) 
32/2 
Main Skill (スキル) Rising Evil イビルライジング  
3x Stab Attack, chance to Paralyze. (Skill Power increases based on number of Demontype Subs.) 敵に突属性のダメージを3回与え、確率で麻痺状態にする(子分の悪魔の数だけスキル威力が上昇)  
Sub Skill (子分スキル) Great Duke of Hell 地獄の大公爵  
When Main Card is Demontype, grants 20% Skill Boost on Straight+. 親分が悪魔の時、ストレート以上でスキル威力20％ＵＰ  
Super Fusion (超合体) Wrath Hell! ラースヘル!  

Overview
Baal (along with Four) marks the first set of 32Cost cards.
Main Skill
SL1  SL2  SL3  SL4  SL5  SL6  SL7  
DMG  0.75x  0.80x  0.85x  0.92x  1.0x  1.1x  1.2x 

DMG (1 Demon Sub)  1.0x  1.1x  1.2x  1.3x  1.4x  1.5x  1.6x 
DMG (2 Demon Subs)  1.1x  1.2x  1.3x  1.4x  1.5x  1.6x  1.7x 
DMG (3 Demon Subs)  1.2x  1.3x  1.4x  1.5x  1.6x  1.7x  1.8x 
Paralysis Chance  30%  32%  34%  38%  43%  48%  55% 
As seen above, even with one Demontype sub, Baal's base damage modifier jumps significantly.
A good setup to run is one Demontype sub (such as Satan, Monica, or even another Baal) and two 35% Skill Boost subs, as it tends to net the most consistent damage results. (If you managed to nab them, Foreba and Hell Bolg are excellent as subs for Baal.)
Interestingly enough, Baal's been somewhat buffed since he was first released; it was difficult to find suitable Demon Subs to use, and even then, the Skill Boosts were typically on the low end (~20%). However, more Cards have since been released that make better Subs and a number of Awakened Cards (like Heltares, Beelzebub, and Satan) have gotten upgraded Subs that make them more compatible with Baal. Of course, with the rising Power Creep of 34+ Cost cards and Awakened Cards, Baal needs all the advantages he can get to stay competitive.
Sub Skill
A simple 20% Skill Boost on a Straight+ on a Demontype Main Card.
A bit restricted in its use, but unsurprisingly, this makes Baal a pretty decent sub for himself.
Recommended Subcards
Trivia
Known as one of the seven princes of Hell, Baal was ranked as the first and principal king in Hell, ruling over the East.
According to some authors, Baal is a Duke, with sixtysix legions of demons under his command.