Mystic Arte Summon (Sara)

General Information

 * Duration: 9/21 (Wed) 1:30 - 10/1 (Sat) 7:59 PST
 * 5 Hero Stones for 1 Roll
 * 1st roll guarantees a 4-star unit or higher
 * 50 Hero Stones for 11 Rolls
 * Guaranteed at least one 4+ unit