That's nasty, because there is always someone frumping around with a bunch of key permanents to take out, like Primeval Titan, Deadeye Navigator, Elspeth, Sun's Champion, Karn Liberated, the aforementioned Mind's Eye or Sylvan Library, all of their non-lands
Despite appearing to be somewhat weak competitively, Sab-Sunen, Luxa Embodied will work wonders in Commander
It's also a good combat trick to trade or keep a key creature alive in combat while still bringing that heat
That, in our simplistic understanding of game design, means they need to combine: Low mana cost Having good stats (attack and fortitude) compared to the mana cost Have absolutely busted in-game effects The low mana cost was easy to justify: Agent0 is always there for you, any time of day and night
Divine Convocation Divine Convocation is a Jeskai convoke focused deck, looking to drop cheap and token creatures to power out powerful spells, along with some tapping synergies that work perfectly with convoke