Rule 430.2

Triggered and activated abilities that Add resources finalize immediately when they are played, even when handling tasks or during the resolution of spells and abilities, and resolve as soon as they are finalized.

• 430.2.a Priority and Focus will not pass from Add abilities being finalized or resolving. Any ongoing Task or step in the FEPR…
• 430.2.b Spells that Add resources will be finalized and will resolve at the normal timing for spells.

Official Core Rules