Karona, False God AvatarHow it works & interactions with other cards

Unpredictable Exchanges

The core of this card is its triggered ability that occurs at the beginning of your upkeep. Unlike typical exchange effects, Karona, False God Avatar does not let you choose which permanents are traded; instead, the process is entirely random for both players involved. You must target an opponent, and then both of you will lose control of one random permanent while gaining control of another.

Step-by-Step Resolution

First, at the start of your upkeep, the ability is put on the stack and you choose a target opponent. When the ability resolves, you first determine which permanent you control is chosen at random, and then determine which permanent your targeted opponent controls is chosen at random. Finally, the control of these two specific permanents is exchanged simultaneously. If one of the permanents is no longer on the battlefield when the ability tries to resolve, the exchange cannot take place.

Common Mistakes to Avoid

A common error is thinking you can choose to trade a 'bad' permanent for a 'good' one. Because the selection is random, you might accidentally trade away your best creature for a basic land or a mana rock. Additionally, remember that this is a mandatory trigger; if you have a legal target (an opponent), you must put the ability on the stack even if you don't want to risk losing your permanents.

When to Play It

This card is best utilized in decks that can generate many small tokens or low-value permanents. By increasing the number of permanents you control, you reduce the statistical likelihood of losing a key piece of your strategy. It also shines in political formats where forcing an exchange can disrupt a leading player's board state while potentially giving you a much-needed resource.

Interaction examples

Trading Assets

Sol Ring

If your only permanent is a Sol Ring and your opponent has three creatures, the ability will reliably take your Sol Ring and give you one of those three creatures at random. This ensures you receive a creature, though you lose your primary mana source.

Randomized Land Grabs

Command Tower

During your upkeep, if the random selection chooses your Command Tower and your opponent's random selection is a creature, you will gain their creature and they will gain your Command Tower. Even though the land is now controlled by your opponent, it still produces mana based on your commander's color identity, though your opponent is now the one who can activate its ability.