If a player or permanent has more than one type of counter, what type is added when proliferating?

When proliferating, the rule allows the player to choose which type of counter to add on a permanent or player that has multiple types of counters already present. This is significant because it provides a strategic decision-making element, enabling the player to bolster the type of counter that is most beneficial or relevant to their game plan.

For instance, if a creature has a loyalty counter and a +1/+1 counter, when proliferating, the player can decide to add either type of counter as they see fit. This choice can impact the game in various ways, such as enhancing the strength of a creature or increasing the loyalty of a planeswalker, depending on the current game state.

The other options do not accurately reflect the rules governing proliferating. The notion that a player can only add a type of counter that has already been added overlooks the mechanism of choice inherent in the process. Specifying that the counter must be added at random does not match the dictate of the rule, which emphasizes player agency. The idea that only one type of counter can exist at any time is incorrect, as permanents can indeed have multiple types of counters simultaneously, which is a fundamental part of how various cards interact within the game. Thus, the ability to choose which type of