Reckless cloudians = profit?

[Toffee.]

Not really cloudians, but you get the idea...

Looming Thunderstorm -DARK-
Lvl1
[Thunder/Effect]
You can Special Summon this card from your hand. This card cannot be Tributed, or used as a Synchro Material monster. You can send this face-up card you control to the Graveyard to destroy 1 face-up card on the field.
500ATK / 500DEF

Violent Thunderstorm -DARK-
Lvl5
[Thunder/Effect]
You can Special Summon this card from your hand. This card cannot be Tributed, or used as a Synchro Material monster. As long as this card remains face-up on the field, the ATK and DEF of all monsters your Opponent controls is reduced by 1000 points. During the End Phase of the turn in which this card is Special Summoned with this effect, send this card to the Graveyard.
1500ATK / 1500DEF

Thunderstorm Vortex -DARK-
Lvl2
[Thunder/Effect]
You can Special Summon this card from your hand. This card cannot be Tributed, or used as a Synchro Material monster. If this card is destroyed, you can Special Summon 1 level 5 or higher "Thunderstorm" monster from your deck to your side of the field.
1000ATK / 100DEF

High-Wind Thunderstorm -DARK-
Lvl7
[Thunder/Effect]
You can Special Summon this card from your hand. This card cannot be Tributed, or used as a Synchro Material monster. When this card is Special Summoned with this effect, you can destroy Spell/Trap cards on the field equal to the number of "Thunderstorm" monsters you control, except this card, During the End Phase of the turn this card was Special Summoned with this effect, send this card to the Graveyard.
800ATK / 1300DEF

Strato Thunderstorm -DARK-
Lvl2
[Thunder/Effect]
You can Special Summon this card from your hand. This card cannot be Tributed, or used as a Synchro Material monster. If you have at least 3 "Thunderstorm" monsters in your Graveyard when you Special Summon this card with this effect, and you have 3 or less cards in your hand, draw 2 cards. You cannot Special Summon this card from your hand if you control a "Strato Thunderstorm".
700ATK / 100DEF

Thunderstorm Cluster -DARK-
Lvl6
[Thunder/Effect]
You can Special Summon this card from your hand. This card cannot be Tributed, or used as a Synchro Material monster. If this card is destroyed as a result of battle, you can Special Summon 1 level 2 or lower "Thunderstorm" monster from your deck to your side of the field.
1000ATK / 1000DEF

Thunderstorm Hurricane -DARK-
Lvl4
[Thunder/Fusion/Effect]
This card can only be Special Summon this card from your Extra Deck by sending 2, level 2 or lower "Thunderstorm" monsters you control to the Graveyard. Once per turn you can destroy 1 card on the field. If this effect is activated, this card cannot attack this turn.
2000ATK / 500DEF

Immense Thunderstorm -DARK-
Lvl8
[Thunder/Fusion/Effect]
This card can only be Special Summon this card from your Extra Deck by sending 1 level 5 or higher, and 1 level 2 or lower "Thunderstorm" monsters you control to the Graveyard. When this card is Special Summoned, Remove from play 1 card on the field and inflict 1000 points of damage to your Opponent's Lifepoints.
2600ATK / 1900DEF

Hurricane Thunderstorm -DARK-
Lvl8
[Thunder/Fusion/Effect]
This card can only be Special Summon this card from your Extra Deck by sending 2 level 5 or higher "Thunderstorm" monsters you control to the Graveyard. Each time a monster is Summoned, inflict 800 points of damage to your Opponent's Lifepoints.
2300ATK / 2300DEF

Thunderstorm Disaster -DARK-
Lvl12
[Thunder/Fusion/Effect]
This card can only be Special Summon this card from your Extra Deck by sending 2 "Thunderstorm" Fusion monsters you control to the Graveyard. Once per turn, during your Opponent's turn, you can Special Summon 1 monster from the Opponent's Graveyard to your Opponent's side of the field. A monster Special Summoned with this effect has its ATK and DEF reduced to 500 points. At that time, draw cards from your deck equal to half of the level of the Special Summoned monster(rounded up to the nearest whole number)
2600ATK / 2700DEF

Rolling Thunder -Trap-
Remove from play 1 "Thunderstorm" monster you control, and select 1 face-up monster your opponent controls. Draw 1 card and flip the Opponent's monster to face-dpwn defense position.