Finality counters keep the card from being too recursive or broken, and its expensive to get into play, but the effect is worth having around in typal decks that focus on larger creatures, like giants or angels
Skyshroud Claim is a four mana green sorcery that searches for two Forests in your library and puts them into play untapped
But there is a special serialized version of which there will only be one
Its connive triggers for each player's second spell, allowing it to trigger two times if you have enough instant spells
Commander Hard Mode, bring it
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
