Jeska's Will {2}{R}

Notes and Rules Information for Jeska's Will:

• Jeska's Will isn't a mana ability, even if you select the first mode (or both modes). It uses the stack and can be responded to. (2020-11-10)
• Use the number of cards in the target opponent's hand as Jeska's Will resolves to determine how much {R} to add. (2020-11-10)
• You must follow the normal timing permissions and restrictions for the exiled cards. You can't play lands this way unless you have land plays available. (2020-11-10)
• You'll still pay all costs for a spell cast this way, including additional costs. You may also pay alternative costs if any are available. (2020-11-10)
• Any of the exiled cards you don't play will remain exiled. (2020-11-10)

• Even though the card is named after a specific character, controlling any commander will satisfy its condition. (2020-11-10)
• There's no extra bonus if you control more than one commander. (2020-11-10)
• The commander you control doesn't have to be your commander. (2020-11-10)
• Once you've announced that you're casting a spell, players can't take any actions until you've finished doing so. Notably, opponents can't try to remove your commander to change how many modes you may choose. (2020-11-10)
• Once you've chosen both modes for the spell, it doesn't matter whether you continue to control a commander. This is true even if you somehow no longer control a commander as you finish casting the spell. (2020-11-10)