Heliod, the Radiant Dawn
Legendary Enchantment Creature — God
When Heliod enters, return target enchantment card that isn't a God from your graveyard to your hand.
: Transform Heliod. Activate only as a sorcery. ( can be paid with either 
or 2 life.)
"*Compleat* the faith, *compleat* the god." —Ajani Goldmane
Heliod, the Warped Eclipse
.
Legendary Enchantment Creature — Phyrexian GodYou may cast spells as though they had flash.
Spells you cast cost 
less to cast for each card your opponents have drawn this turn.
"*Compleat* the god, *compleat* the plane." —Ajani Goldmane
Victor Adame Minguez
Rulings
If a spell you cast has {X} in its mana cost, you choose the value of X before calculating the spell’s total cost. For example, if a spell’s mana cost is {X}{R} and your opponents have drawn two cards this turn, you could choose 5 as the value of X and pay {3}{R} to cast the spell.
(wotc • 2023-04-14)
If there are additional costs to cast a spell, or if the cost to cast a spell is increased by an effect (such as the one created by Thalia, Guardian of Thraben’s ability), apply those increases before applying cost reductions.
(wotc • 2023-04-14)
The “as though they had flash” effect applies only to casting spells. It does not, for example, change when you may activate abilities that can be activated “only as a sorcery.”
(wotc • 2023-04-14)
That ability can’t reduce the amount of colored mana you pay for a spell. It reduces only the generic mana component of that cost.
(wotc • 2023-04-14)
The last ability of Heliod, the Warped Eclipse doesn’t change the mana cost or mana value of any spell. It changes only the total cost you pay.
(wotc • 2023-04-14)
The cost reduction can apply to alternative costs such as flashback costs.
(wotc • 2023-04-14)
Rulings
If a spell you cast has {X} in its mana cost, you choose the value of X before calculating the spell’s total cost. For example, if a spell’s mana cost is {X}{R} and your opponents have drawn two cards this turn, you could choose 5 as the value of X and pay {3}{R} to cast the spell.
(wotc • 2023-04-14)
If there are additional costs to cast a spell, or if the cost to cast a spell is increased by an effect (such as the one created by Thalia, Guardian of Thraben’s ability), apply those increases before applying cost reductions.
(wotc • 2023-04-14)
The “as though they had flash” effect applies only to casting spells. It does not, for example, change when you may activate abilities that can be activated “only as a sorcery.”
(wotc • 2023-04-14)
That ability can’t reduce the amount of colored mana you pay for a spell. It reduces only the generic mana component of that cost.
(wotc • 2023-04-14)
The last ability of Heliod, the Warped Eclipse doesn’t change the mana cost or mana value of any spell. It changes only the total cost you pay.
(wotc • 2023-04-14)
The cost reduction can apply to alternative costs such as flashback costs.
(wotc • 2023-04-14)