Lets do this
H-E-R-O Flash
Its easier to activate and does more
Aerith, Last Ancient Amarant Coral Barret, Avalanche Leader Bugenhagen, Wise Elder Cloud, Ex-SOLDIER Kimahri, Valiant Guardian Maester Seymour Professor Hojo Red XIII, Proud Warrior Shelinda, Yevon Acolyte Sin, Unending Cataclysm Tidus, Yuna's Guardian Tifa, Martial Artist Tromell, Seymour's Butler Wakka, Devoted Guardian Yuna, Grand Summoner
Being 1 mana is very under priced for a 3/3 stat line while being a flyer, it stays relevant in later stages in not getting blocked by bigger threats
As long as you have a Mountain (which you should), all creatures you control have Haste, letting you quickly put out damage from creatures played from your hand