Rulings

• 2007-05-01
  You choose how the damage prevention shields will be divided when you put the triggered ability on the stack. The number of targets must be at least one and at most five.
• 2014-07-18
  When using convoke to cast a spell with in its mana cost, first choose the value for X. That choice, plus any cost increases or decreases, will determine the spell’s total cost. Then you can tap creatures you control to help pay that cost. For example, if you cast Chord of Calling (a spell with convoke and mana cost ) and choose X to be 3, the total cost is . If you tap two green creatures and two red creatures, you’ll have to pay .
• 2014-07-18
  Tapping a multicolored creature using convoke will pay for or one mana of your choice of any of that creature’s colors.
• 2014-07-18
  Because convoke isn’t an alternative cost, it can be used in conjunction with alternative costs.
• 2014-07-18
  When calculating a spell’s total cost, include any alternative costs, additional costs, or anything else that increases or reduces the cost to cast the spell. Convoke applies after the total cost is calculated.
• 2014-07-18
  Convoke doesn’t change a spell’s mana cost or converted mana cost.
• 2014-07-18
  The rules for convoke have changed slightly since it last appeared in an expansion. Previously, convoke reduced the cost to cast a spell. Under current rules, you tap creatures at the same time you pay the spell’s costs. Tapping a creature this way is simply another way to pay.
• 2014-07-18
  If a creature you control has a mana ability with in the cost, activating that ability while casting a spell with convoke will result in the creature being tapped when you pay the spell’s costs. You won’t be able to tap it again for convoke. Similarly, if you sacrifice a creature to activate a mana ability while casting a spell with convoke, that creature won’t be on the battlefield when you pay the spell’s costs, so you won’t be able to tap it for convoke.
• 2021-03-19
  When calculating a spell’s total cost, include any alternative costs, additional costs, or anything else that increases or reduces the cost to cast the spell. Convoke applies after the total cost is calculated. Convoke doesn’t change a spell’s mana cost or converted mana cost.
• 2021-03-19
  If some of the targets become illegal for Angel of Salvation’s ability, the original division of prevention effects still applies, but the effects that would have been created for illegal targets aren’t created at all.
• 2021-03-19
  You divide the prevention effects as Angel of Salvation’s triggered ability is put onto the stack, not as it resolves. Each target must be assigned at least 1 prevention “shield.” You can’t choose more than five targets and assign none to a target.
• 2021-03-19
  If multiple sources would deal damage to an affected target at once, that target or that target’s controller chooses which source’s damage to prevent for each “shield.”
• 2021-03-19
  If multiple replacement effects apply to a player or permanent being dealt damage, that player or the controller of that permanent chooses the order to apply them, not the controller of the source of damage.
• 2021-03-19
  You can tap any untapped creature you control to convoke a spell, even one you haven’t controlled continuously since the beginning of your most recent turn.
• 2021-03-19
  If a creature you control has a mana ability with in the cost, activating that ability while casting a spell with convoke will result in the creature being tapped before you pay the spell’s costs. You won’t be able to tap it again for convoke. Similarly, if you sacrifice a creature to activate a mana ability while casting a spell with convoke, that creature won’t be on the battlefield when you pay the spell’s costs, so you won’t be able to tap it for convoke.