[Summon Condition: Controlling a Six-Colored Grandwalker Nexus]
Ultimate-Trigger [LV3][LV4][LV5][LV6] (When Attacks) When Ultimate-Trigger hits, you can pay one cost to summon one Ultimate from your Hand. After Ultimate-Trigger, if your Life is 3 or less, "Cross Ultimate-Trigger" happens.
Cross Ultimate-Trigger - When Cross Ultimate-Trigger hits, add two Ultimate symbols to this Ultimate, and refresh this Ultimate.
(Ultimate-Trigger/Cross Ultimate-Trigger: Put 1 card from your opponents deck to the trash. If the cost of that card is lower than this ultimate, it will hit)