Series Heroes Summon

General Information

 * Duration: 4/x (?) 8:00 - 4/x (?) 7:59 PST
 * 5 Hero Stones for 1 Roll
 * 1st roll guarantees one 4-star unit or higher
 * Step 1: 10 Hero Stones for 10 Rolls
 * Guarantees one 4-star or higher
 * Step 2: 30 Hero Stones for 10 Rolls
 * Guarantees one 5-star hero
 * Step 3: 50 Hero Stones for 10 Rolls
 * Guarantees one 5-star featured hero
 * Step 4+: 50 Hero Stones for 10 Rolls
 * Guarantees two 4-star or higher units

5-star
more...?