# 2021 Magic: The Gathering Magic Online Promos #90136

> The Exponential Growth foil card from the 2021 Magic Online Promos set, a rare sorcery valued by Magic: The Gathering collectors for its unique gameplay mechanics and foil finish.

Canonical URL: https://supercatch.com/product/magic-the-gathering-magic-online-promos-exponential-growth-90136-foil

## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Magic Online Promos
- **Card number**: #90136
- **Product type**: TCG_CARD

## Description

The Exponential Growth card from the 2021 Magic Online Promos set offers a unique twist on classic Magic: The Gathering sorcery mechanics. Identified by card number 90136 and set code PRM, this foil release features a green mana cost of {X}{X}{G}{G}, allowing players to double a target creature's power up to X times until end of turn. For collectors, the foil treatment adds significant visual appeal, making it a standout piece in any Magic: The Gathering trading card game collection. Whether you are building a thematic set or seeking rare promo cards, this product represents a key element of the 2021 promotional landscape. Its versatility in gameplay and distinctive foil finish make it a sought-after item among enthusiasts who appreciate both the aesthetic and mechanical depth of the game.

## FAQ

### What is the mana cost of Exponential Growth?

The mana cost for Exponential Growth is {X}{X}{G}{G}, requiring two generic mana, two green mana, and a variable X amount of green mana.

### What does the Exponential Growth card do?

This sorcery allows you to double the power of a target creature X times until the end of the turn, making it a powerful tool for boosting your creatures in a single turn.

### Is Exponential Growth part of a specific set?

Yes, this card is part of the Magic Online Promos set, released in 2021, and is identified by the set code PRM and card number 90136.

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Last verified: 2025-11-29.