What happens next depends on the type of spell you are casting, but typically, it will usually have a one-time effect and then go to the graveyard, or it will become a permanent that stays on the battlefield until it is removed
When creatures sustain damage but survive an attack, they return to full health at the start of the next turn
Triggered abilities (starting with "when," "whenever," or "at") are unaffected by Karn
The goal is to exploit something smaller and keep the 4/6 deathtoucher intact, but sacrificing Sidisi to itself and grabbing a mass reanimation effect is always a solid gameplan, too
Wizardcycling is in fact cycling
For the first few years of its production, Magic: The Gathering featured a small number of cards with names or artwork with demonic or occultist themes, in 1995 the company elected to remove such references from the game