Krang, Master Mind — ruling 1

If you have four or more cards in hand when Krang enters, his second ability won't trigger at all. If it does trigger, the ability will check again as it tries to resolve. If you have four or more card in hand at that time, the ability won't resolve and none of its effects will happen.

Krang, Master Mind — ruling 2

To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions (such as affinity for artifacts). The mana value of the spell remains unchanged, no matter what the total cost to cast it was.

Krang, Master Mind : règles, fonctionnement et interactions (MTG)

Krang, Master Mind 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

Affinity for artifacts (This spell costs less to cast for each artifact you control.) When Krang enters, if you have fewer than four cards in hand, draw cards equal to the difference. Krang gets +1/+0 for each other artifact you control.

How it works : Krang, Master Mind

Original English text — Wizards of the Coast / Scryfall

#1January 27, 2026· Wizards of the Coast
If you have four or more cards in hand when Krang enters, his second ability won't trigger at all. If it does trigger, the ability will check again as it tries to resolve. If you have four or more card in hand at that time, the ability won't resolve and none of its effects will happen.
No other card is named in this ruling.
#2January 27, 2026· Wizards of the Coast
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions (such as affinity for artifacts). The mana value of the spell remains unchanged, no matter what the total cost to cast it was.
No other card is named in this ruling.