Hymn of the Wilds — ruling 1

The first ability doesn't change the mana cost or mana value of any creature spell. It changes only the total cost you actually pay.

Hymn of the Wilds — ruling 2

If you have more than one Hymn of the Wilds in the command zone, their abilities will each apply to the first creature spell you cast each turn. For example, if you have two, the first creature spell you cast each turn costs {2} less to cast. Subsequent creature spells won't get a discount.

Hymn of the Wilds — ruling 3

The ability can't affect the amount of colored mana you pay for a spell. It reduces only the generic component of that mana cost.

Hymn of the Wilds — ruling 4

The first creature spell you cast each turn doesn't necessarily have to be the first spell you cast. For example, you could cast an artifact spell and then cast a creature spell that would get the discount.

Hymn of the Wilds — ruling 5

If there are additional costs to cast a spell, or if the cost to cast a spell is increased by an effect, apply those increases before applying cost reductions.

Hymn of the Wilds — ruling 6

The cost reduction can apply to an alternative cost, such as a madness cost.

Hymn of the Wilds — ruling 7

If the first creature spell you cast in a turn has {X} in its mana cost, you choose the value of X before calculating the spell's total cost. For example, if the first creature spell you cast in a turn has a mana cost of {X}{G}, you could choose 1 as the value of X and pay {G} to cast the spell.

Hymn of the Wilds — ruling 8

Conspiracies are never put into your deck. Instead, you put any number of conspiracies from your card pool into the command zone as the game begins. These conspiracies are face up unless they have hidden agenda, in which case they begin the game face down.

Hymn of the Wilds : règles, fonctionnement et interactions (MTG)

Hymn of the Wilds 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

(Start the game with this conspiracy face up in the command zone.) The first creature spell you cast each turn costs less to cast. You can't cast instant or sorcery spells.

How it works : Hymn of the Wilds

Original English text — Wizards of the Coast / Scryfall

#1August 23, 2016· Wizards of the Coast
The first ability doesn't change the mana cost or mana value of any creature spell. It changes only the total cost you actually pay.
No other card is named in this ruling.
#2August 23, 2016· Wizards of the Coast
If you have more than one Hymn of the Wilds in the command zone, their abilities will each apply to the first creature spell you cast each turn. For example, if you have two, the first creature spell you cast each turn costs less to cast. Subsequent creature spells won't get a discount.
No other card is named in this ruling.
#3August 23, 2016· Wizards of the Coast
The ability can't affect the amount of colored mana you pay for a spell. It reduces only the generic component of that mana cost.
No other card is named in this ruling.
#4August 23, 2016· Wizards of the Coast
The first creature spell you cast each turn doesn't necessarily have to be the first spell you cast. For example, you could cast an artifact spell and then cast a creature spell that would get the discount.
No other card is named in this ruling.
#5August 23, 2016· Wizards of the Coast
If there are additional costs to cast a spell, or if the cost to cast a spell is increased by an effect, apply those increases before applying cost reductions.
No other card is named in this ruling.
#6August 23, 2016· Wizards of the Coast
The cost reduction can apply to an alternative cost, such as a madness cost.
No other card is named in this ruling.
#7August 23, 2016· Wizards of the Coast
If the first creature spell you cast in a turn has in its mana cost, you choose the value of X before calculating the spell's total cost. For example, if the first creature spell you cast in a turn has a mana cost of , you could choose 1 as the value of X and pay to cast the spell.
No other card is named in this ruling.
#8August 23, 2016· Wizards of the Coast
Conspiracies are never put into your deck. Instead, you put any number of conspiracies from your card pool into the command zone as the game begins. These conspiracies are face up unless they have hidden agenda, in which case they begin the game face down.
No other card is named in this ruling.
#9August 23, 2016· Wizards of the Coast
A conspiracy doesn't count as a card in your deck for purposes of meeting minimum deck size requirements. (In most drafts, the minimum deck size is 40 cards.)
No other card is named in this ruling.
#10August 23, 2016· Wizards of the Coast
You don't have to play with any conspiracy you draft. However, you have only one opportunity to put conspiracies into the command zone, as the game begins. You can't put conspiracies into the command zone after this point.
No other card is named in this ruling.
#11August 23, 2016· Wizards of the Coast
You can look at any player's face-up conspiracies at any time. You'll also know how many face-down conspiracies a player has in the command zone, although you won't know what they are.
No other card is named in this ruling.
#12August 23, 2016· Wizards of the Coast
A conspiracy's static and triggered abilities function as long as that conspiracy is face-up in the command zone.
No other card is named in this ruling.
#13August 23, 2016· Wizards of the Coast
Conspiracies are colorless, have no mana cost, and can't be cast as spells.
No other card is named in this ruling.
#14August 23, 2016· Wizards of the Coast
Conspiracies aren't legal for any sanctioned Constructed format, but may be included in other Limited formats, such as Cube Draft.
No other card is named in this ruling.