They do not apply to your sideboard, nor to any cards added to your deck after the game began (such as with the conjure mechanic)
Besides being able to target the player, the only advantage Lightning Strike has over Lava Coil is being an instant which, admittedly, is very relevant but no red deck should go without four Lava Coil in the 75
During your Main Phase: You can change as many monsters your opponent controls as possible to face-down Defense Position, then you can send all face-up cards your opponent controls to the GY
Machamp (Shadowless) Base Set ($41) The very first Pokemon Trading Card Game cards, from 1999s Base Set, had no shadow around the window bordering the Pokemons picture
This isnt necessarily a list of the most powerful Rakdos cardstheyre just ones that I have personal connections with, so keep that in mind before you start making the obligatory what-about-card-X