Cloudspire
What happens when Immolate triggers on a defeated Naroran unit and the attacker has little source?
One worked example gives this reading, and no ruling is cited.
- Wisdomseyes1 · Community · 2020-07-10
The Narora gain only the source actually taken from the attacker. The attacker pays up to 4 source, limited by what it has, so with less than 4 the Narora gain the smaller amount.