[LV1][LV2] (When Summoned) You can reveal three cards from the top of your deck. Add one Grandwalker Nexus among them to your hand. Remaining cards are returned to the bottom of your deck. After this effect resolves, by paying one cost, activate this effect only one more time.
Release: 1 [LV2] (When Attacks) Once per turn, by putting one core from your Grandwalker Nexus to this Spirit, immediately activate one of that Grandwalker Nexus' Grand Skill, treating the core as being sent to the Void.
Ruling:
1. This Spirit's Release cannot be used on Grand Skill with 2 or more different costs (e.g. The Grandwalker Zeus).