Summoning Materia — ruling 1

You must follow all normal timing rules for spells cast using the second ability and must pay all costs for spells cast this way. To cast a spell this way, you may choose to pay any alternative costs or optional additional costs the spell may have (such as a kicker cost). You must pay any mandatory additional costs.

Summoning Materia — ruling 2

Summoning Materia lets you look at the top card of your library whenever you want (with one restriction—see below), even if you don't have priority. This action doesn't use the stack. Knowing what that card is becomes part of the information you have access to, just like you can look at the cards in your hand.

Summoning Materia — ruling 3

The top card of your library isn't in your hand, so you can't cycle it, discard it, or activate any of its abilities that could be activated from your hand.

Summoning Materia — ruling 4

If the top card of your library changes while you're casting a spell, playing a land, or activating an ability, you can't look at the new top card until you finish doing so. This means that if you cast the top card of your library, you can't look at the next one until you're done paying for that spell.

Summoning Materia : règles, fonctionnement et interactions (MTG)

Summoning Materia 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

You may look at the top card of your library any time. As long as this Equipment is attached to a creature, you may cast creature spells from the top of your library. Equipped creature gets +2/+2 and has vigilance and ": Add ." Equip

How it works : Summoning Materia

Original English text — Wizards of the Coast / Scryfall

#1June 6, 2025· Wizards of the Coast
You must follow all normal timing rules for spells cast using the second ability and must pay all costs for spells cast this way. To cast a spell this way, you may choose to pay any alternative costs or optional additional costs the spell may have (such as a kicker cost). You must pay any mandatory additional costs.
No other card is named in this ruling.
#2June 6, 2025· Wizards of the Coast
Summoning Materia lets you look at the top card of your library whenever you want (with one restriction—see below), even if you don't have priority. This action doesn't use the stack. Knowing what that card is becomes part of the information you have access to, just like you can look at the cards in your hand.
No other card is named in this ruling.
#3June 6, 2025· Wizards of the Coast
The top card of your library isn't in your hand, so you can't cycle it, discard it, or activate any of its abilities that could be activated from your hand.
No other card is named in this ruling.
#4June 6, 2025· Wizards of the Coast
If the top card of your library changes while you're casting a spell, playing a land, or activating an ability, you can't look at the new top card until you finish doing so. This means that if you cast the top card of your library, you can't look at the next one until you're done paying for that spell.
No other card is named in this ruling.