If Volibear with Deflect 2 is targeted by Icathian Rain (which creates 6 reflexive triggers), can the opponent kill Volibear if they only have enough energy to pay for some of the Deflect costs?

Ruling: When Icathian Rain creates 6 reflexive triggers targeting a unit with Deflect 2, the player can choose to decline paying the Deflect cost for triggered abilities. Any triggers where the cost is not paid will fail to finalize and be removed from the chain without dealing damage.

Sequence:

• Icathian Rain creates 6 reflexive triggers (triggered abilities)
• For each trigger, choose a target
• If targeting a unit with Deflect, you must pay the Deflect cost immediately after choosing the target
• If you cannot or choose not to pay, that trigger fails to finalize and is removed from the chain
• Only triggers where the Deflect cost was paid will resolve and deal damage

Nuances:

• This rule only applies to triggered abilities; for spells like Stupefy, you must pay the Deflect cost
• You can choose the same Deflect unit multiple times but only pay for some instances
• If a triggered ability has additional effects (like "Do X to a unit. Draw 1"), declining the Deflect cost means the trigger never fully enters the chain and won't resolve at all, so you won't get the draw either