Prismatic Circle [Mirage] Kaladesh Tokens or triggered ability

or triggered ability

you may have Murasa Pyromancer deal damage to target creature equal to the number of Allies you control

Some souls are too damaged to be of use to the Orzhov

if you control a card(s) in your Spell & Trap Card Zone: You can Special Summon this card from your hand

" —Yacha

Prismatic Circle [Mirage] Kaladesh Tokens or triggered abilitySet: Mirage Type: Enchantment Rarity: Common Cost: {2}{W} Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) As Prismatic Circle enters the battlefield, choose a color. {1}: The next time a source of your choice of the chosen color would deal damage to you this turn, prevent that damage.