Uril, The Miststalker Voltron Budget Commander (EDH / Commander)

Make Uril a big ol' boi. Win by dealing 21 or more commander damage.

12 auras protect your creature in some way (totem armor, indestructibility, Flickerform, Gift of Immortality). Flickerform is the most powerful out of these because its activated ability allows your creature to survive any attack in the game including exile board wipes and sacrifice affects. Flickerform is the only card of this type to also keep all auras attached to the creature.
13 auras give your creature evasion (flying, trample, protection from creatures).

Enduring Ideal provides a near guarantee of victory when cast. It can tutor for Auras and attach them to target creatures by the way. When first cast it is best to tutor for Shield of the Oversoul or Gift of Immortality (don't tutor Flickerform first unless you still have the mana to activate its ability after casting Enduring Ideal). Next tutor should then be Flickerform. Following that, you can tutor for evasion, pump, or removal. Don't tutor for Sigil of the Empty throne because that card says, "Whenever you CAST." Enduring Ideal specifically says, "Put it [the tutored enchantment] onto the battlefield." This will not trigger Sigil of the Empty throne making the card useless.