The Platinum Showcase is a special summon showcase that works similar to a Tenfold Summon, in that one summon will yield 10 results. The difference between a regular Tenfold Summon and the Platinum Showcase is that a 5 
adventurer or dragon (depending on the showcase's offerings) is guaranteed to appear on the 10th result. These summons can only be performed with 
Diamantium (purchase required), and players are limited in the number of Platinum Showcase summons they can do.
- During the first iteration of the Platinum Showcase in November 2018, whether the player got an adventurer, a wyrmprint, or a dragon depended on when they did their summon. There were defined periods for the 5
Adventurer Guaranteed, the 5 Wyrmprint Guaranteed, and the 5 Dragon Guaranteed summons. During each period, players were limited in the number of Platinum Showcase summons they could do. - Platinum Showcases were not offered again until the release of Fire Emblem: Lost Heroes, at which point Wyrmprints had been completely removed from the summoning pool. The period-based system has also been abandoned - later Platinum Showcases instead have either only Dragons or only Adventurers available as the Guaranteed 5 , and if both are available (such as December 2019), then they are treated as completely separate showcases.
Platinum Showcases
Guaranteed one of:
Start Date: December 21, 2020 06:00:00 AM UTC
End Date: December 28, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: November 23, 2020 06:00:00 AM UTC
End Date: November 27, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: November 06, 2020 06:00:00 AM UTC
End Date: November 13, 2020 05:59:59 AM UTC
Start Date: October 30, 2020 06:00:00 AM UTC
End Date: November 04, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: October 22, 2020 06:00:00 AM UTC
End Date: October 30, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: October 12, 2020 06:00:00 AM UTC
End Date: October 16, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: October 09, 2020 06:00:00 AM UTC
End Date: October 12, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: September 27, 2020 06:00:00 AM UTC
End Date: October 05, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: September 21, 2020 06:00:00 AM UTC
End Date: September 27, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: September 15, 2020 06:00:00 AM UTC
End Date: September 21, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: September 03, 2020 06:00:00 AM UTC
End Date: September 07, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: August 17, 2020 06:00:00 AM UTC
End Date: August 29, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: August 04, 2020 06:00:00 AM UTC
End Date: August 14, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: July 18, 2020 06:00:00 AM UTC
End Date: July 30, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: July 03, 2020 06:00:00 AM UTC
End Date: July 15, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: June 22, 2020 06:00:00 AM UTC
End Date: June 29, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: June 03, 2020 06:00:00 AM UTC
End Date: June 12, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: May 22, 2020 06:00:00 AM UTC
End Date: May 29, 2020 05:59:59 AM UTC
Start Date: March 27, 2020 06:00:00 AM UTC
End Date: April 13, 2020 05:59:59 AM UTC
Start Date: March 27, 2020 06:00:00 AM UTC
End Date: April 13, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: December 31, 2019 06:00:00 AM UTC
End Date: January 14, 2020 05:59:59 AM UTC
Guaranteed one of:
Start Date: December 31, 2019 06:00:00 AM UTC
End Date: January 14, 2020 05:59:59 AM UTC
Start Date: September 27, 2019 06:00:00 AM UTC
End Date: October 11, 2019 05:59:59 AM UTC
Guaranteed one of:
Start Date: November 25, 2018 06:00:00 AM UTC
End Date: November 28, 2018 05:59:59 AM UTC
