Before I continue, let me clarify that I'm not suggesting R&D made a poor choicebloodrush was a late addition to Gatecrash design and Return to Ravnica was most likely already locked in by that time (or at least too far along for such a large overhaul)
I can scarcely imagine a better fit for that spot than Demolisher Spawn
(3) That player can't be the target of spells or abilities
A creature with indestructible cant be destroyed by damage.) Illustrated by Aleksi Briclot Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
You get one of these glossy box toppers in a Set or Draft display, and two in a Collector display
With a current price of $63 , its not a cheap card to pick up, but in the case of Bloodmoon Ursaluna ex, there are four different options when it comes to the Twilight Masquerade set, with the most cost effective variant selling for around $2.20 on average