What are some cards that increas your opponent's Life Points? I need to know some to use with Bad Reaction To Simochi. I know of Upstart Goblin and Snatch Steal of of the top of my head. What are some others?

If you're looking at Bad Reaction to Simochi, try The Paths of Destiny. By the flip of a coin both players either gain or lose 2000LP, but if you have Simochi, the opponent will lose 2000 regardless.

There's also Rain of Mercy, which is a Spell that increases both players by 1000.

That's all I know of off the top of my head.

*EDIT* Some more I found are Brain Jacker (FLIP monster version of Snatch Steal) and Burning Algae (when sent to the grave, it heals opponent by 1000).

There is a card in the next set that says, "Your opponent gains 3000 Life Points."

My favorite combo with Bad Reaction will always be the Eye of truth. Keep seeing their hand and burn them for 1000 each turn if they're holding a spell card.

Maybe you could use a combo with Pikeru?

How exactly, Bad Reaction to Simochi only works when your opponent increases life points.

Yeah, most of the cards listed above will do you the most good. After that, toss in some Poison of the Old man and some Giant Germs to poke even more at your opponent, and you have some great reverse damage going. Upstart at 3 really adds some fun to this deck.

Send it to your opponent's side of the field.

ok, thanks a lot guys.

Don't forget to run normal, less situational, burn in your deck. Tremendous Fire and Meteor of Destruction come to mind.

Yea I know man. I am in the process of building one but right now it has like 60 cards so I need to cut it down a lot with only the essential cards.

One tip, run 3x Simochi (no duh) and 1 or 2 Cat of Ill Omens. With that combo I was able to get a Simochi within the first two turns. One option I used in a Skill Drain deck later was Fake Trap to help preserve its presence on the field. Since Simochi is such a pivotal card in this deck. Making sure it stays on the field is paramount.

you could try the burning algae. its a monster where if its sent to the graveyard your opp. gain 1000 lp. 3star pyro...500atk 1500def.

brain jacker, the monster version of snatch steal

You could also use Transmigration Prophecy to bring Bad Reaction to Simochi to your deck again (or anything else for that matter) in the case you would need to. Side decking it wouldn't be a bad idea.