You get a pricey, pricey Pikachu, that's what happens
I had Mudhole in my wishboard for Cunning Wish back when lands had a tendency to get graveyard abuse with stuff like Life from the Loam and Crucible of Worlds
The overframe update -Road to Worlds Login Campaign By logging in until August 19, 12:59 JST, you can obtain the following rewards: Day 1: 1 copy of Number C101: Silent Honor DARK (Royal Finish) Day 2: 300 gems Day 3: 100 gems Day 4: 100 gems Day 5: 100 gems Day 6: 100 gems Day 7: 1 Number C101: Silent Honor DARK Icon Day 8: 100 gems Day 9: 100 gems Day 10: 100 gems An Icon depicting an obsidian spearman immune to decay
And these two cards have something that few cards that don't have - the iconic status - and it's very hard to take out a card like this. So, with Pikachu Illustrator having set a new high bar for the value of Pokmon cards - and achieving increasingly record sums despite not being as hard to find as other cards - could any card ever surpass the TCGs Holy Grail
The best bit about this effect is that it only costs 1 XYZ material to activate, meaning you can reuse this effect, giving you two whole turns of protection from any graveyard shenanigans
You can only activate 1 "Myutant Fusion" per turn