185. Everything Else

185.1. When a player Plays a Card or other Game Object , they are established as that Game Object's Controller.

185.2. For Spells , they are the Spell's Controller.

185.2.a. That player chooses targets.
185.2.b. That player chooses modes.
185.2.c. That player pays costs.

185.3. For Permanents and Runes , when they Enter the Board , that player is assigned as that Game Object's Controller.

185.3.a. That player may make decisions about the Game Object's Inherent Abilities.
185.3.b. That player may make decisions about the Game Object's Unique Abilities.
185.3.c. That player may make decisions about any game effects or decisions necessary while the card is being played.
185.3.d. That player may make decisions about any game effects created from "When you play me" effects of Permanents.

185.4. For Abilities , they are the Ability’s Controller.

185.4.a. By default, the Controller of an Ability’s Source is the Controller of that Ability.
185.4.b. Changes to Control of an Ability’s Source do not change Control of that Ability.
185.4.c. That player chooses targets.
185.4.d. That player chooses modes.
185.4.e. That player pays costs.