Enigmatic Incarnation — ruling 1

While resolving Enigmatic Incarnation’s ability, you can’t sacrifice multiple enchantments to get multiple creatures.

Enigmatic Incarnation — ruling 2

If an enchantment on the battlefield or a creature card in a library has {X} in its mana cost, X is considered to be 0.

Enigmatic Incarnation : règles, fonctionnement et interactions (MTG)

Enigmatic Incarnation is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

At the beginning of your end step, you may sacrifice another enchantment. If you do, search your library for a creature card with mana value equal to 1 plus the sacrificed enchantment's mana value, put that card onto the battlefield, then shuffle.

How it works : Enigmatic Incarnation

Original English text — Wizards of the Coast / Scryfall

#1January 24, 2020· Wizards of the Coast
While resolving Enigmatic Incarnation’s ability, you can’t sacrifice multiple enchantments to get multiple creatures.
No other card is named in this ruling.
#2January 24, 2020· Wizards of the Coast
If an enchantment on the battlefield or a creature card in a library has in its mana cost, X is considered to be 0.
No other card is named in this ruling.