Invisible Woman, Sue Storm 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

Lifelink Whenever you put one or more +1/+1 counters on one or more other Heroes you control, you may create a 0/4 colorless Wall creature token with defender.

Complete guide

Invisible Woman, Sue Storm is a powerful defensive engine that rewards you for empowering your team. As a Hero herself, she focuses on protecting the battlefield by summoning sturdy barriers whenever her allies grow stronger. With lifelink and a unique token-generating ability, she is a cornerstone for any Hero-themed deck looking to stall the game.

A Wall of Protection

Invisible Woman, Sue Storm has a triggered ability that watches for +1/+1 counters being placed on other Heroes you control. Note that this ability only triggers if the creature receiving the counters has the 'Hero' creature type. The ability triggers once regardless of how many counters are placed at once, or how many other Heroes receive them simultaneously, allowing you to create a 0/4 colorless Wall token with defender.

Resolution Step-by-Step

First, an effect or ability must place one or more +1/+1 counters on another Hero you control. Second, the ability of Invisible Woman, Sue Storm triggers and is put onto the stack. When the ability resolves, you choose whether to pay the optional 'may' cost (which in this case is simply the choice to create the token). Finally, if you choose to do so, a 0/4 colorless Wall creature token enters the battlefield under your control.

Timing and Strategy

Because Sue Storm has lifelink, she is excellent for stabilizing your total life while her Walls keep ground attackers at bay. You should look to play her when you have established a board of other Heroes. Remember that her ability does not trigger when she herself receives counters, only when other Heroes do. Common mistakes include forgetting that the Walls have defender, meaning they cannot attack unless another effect allows them to.

Interaction examples

Double the Barriers

Invisible Woman, Sue Storm

Roaming Throne

If Roaming Throne enters the battlefield and you choose 'Human' or 'Hero', it becomes that type. Because Sue Storm is a Human Hero, Roaming Throne will cause her triggered ability to trigger an additional time. If you place a +1/+1 counter on another Hero, you will be able to create two 0/4 Wall tokens instead of one.

Non-Hero Interactions

Invisible Woman, Sue Storm

Solemn Simulacrum

If you place a +1/+1 counter on Solemn Simulacrum, Sue Storm's ability will not trigger. This is because Solemn Simulacrum is a Golem, not a Hero. Her ability specifically requires the target of the counters to have the Hero creature type to generate a Wall.

Defensive Reinforcements

Invisible Woman, Sue Storm Wall

Wall

When the trigger resolves, you create a Wall token. This token has the 'Wall' creature type and the 'defender' keyword. While Sue Storm can attack and use her lifelink to heal you, these tokens serve as a permanent shield to block your opponent's largest non-flying creatures.

Guide written with AI from the official text and rulings. Official English text prevails.