Again, the cards inclusion comes from the acknowledgement that Karn turns off anything thats been turned into an artifact
This line gets more advanced than we're going to deal with for now, but the good news is that for the level you're at right now, in most cases the information you need is right here on the card as you work your way through a game of Magic
This was actually a holiday card that some people in the general public got their hands on, as some copies of it appeared in booster packs bought at big-box stores back in 2013
With these two pieces in play, the Izzet Cauldron strategy as named after the colloquial name for MTG s Blue/Red color-combination, itself derived from the games in-universe Izzet League mages guild and, of course, Agathas Soul Cauldron involves using Agathas Soul Cauldron to apply Vivi Ortinier s ability (and yes, this effect can stack regardless of the number of Vivi Ornitier copies exiled) to ones creatures and using a barrage of cheap Instants like Shock or Burst Lightning to simultaneously pump up their power and provide more mana for additional spells

Tameshi Belcher (8.6% of the Winner's Metagame) 4 Goblin Charbelcher 4 Lotus Bloom 4 Fallaji Archaeologist 4 Hydroelectric Specimen 4 Tameshi, Reality Architect 4 Thundertrap Trainer 4 Beyeen Veil 4 Disrupting Shoal 4 Flare of Denial 4 Jwari Disruption 4 Sink into Stupor 4 Whir of Invention 4 Sea Gate Restoration 4 Suppression Ray 3 Spell Snare 1 Stern Scolding 3 Consign to Memory 3 Harbinger of the Seas 1 Force of Negation 1 Mountain 1 Into the Flood Maw 1 Portable Hole 1 Commandeer 1 Pact of Negation 1 Stern Scolding 1 Flusterstorm 1 Tezzeret the Seeker Tameshi Belcher has emerged as Modern's premier combo deck in the wake of the Underworld Breach ban