Icathian Rain

Yes! This means that these two spells no longer actually have any targets of their own—you play them with no choices. If they resolve, you then put each instance of their reflexive trigger on the chain separately, choosing the same or different units as you like. You’ll pay Deflect costs for each one as you put each trigger on the chain, and then the triggered abilities will resolve one at a time in the opposite order they were put on the chain. This is a big change to how those two cards work, but we think it actually matches how many people expected them to work when they first saw them.

You will not pay for deflect.

While your spell or ability chooses a unit at Heisho, Shell of the World, you ignore deflect while paying for the spell. Ignore, in this context, means you treat deflect on the specified units as being inactive, like it’s turned off temporarily. In the case of Heisho, it doesn’t specify any units whose deflect to ignore, so you ignore all instances of deflect on units.

This only applies to the specified spell or ability. You can’t play a spell or ability choosing a unit at Heisho, and then play another one choosing a unit at another location and not at Heisho and still ignore deflect. Only while at least one target of the spell or ability is a unit located at Heisho do you ignore deflect while paying costs for that spell or ability.

Relevant Rules: 766., 767.