Thanks to being Indestructible and dodging being put in the graveyard, Blightsteel Colossus can only be removed by exile
Well build around them, taking your deck in new and unexpected directions
That enchantment was originally part of 1998's Stronghold set and can only be found in The List (a curated list of older cards that no longer appear in Play Boosters nowadays), making it rather hard to acquire unless you pay the circa $4 to buy it on some kind of marketplace
It's perfect if you're looking for a fun, themed, cohesive deck
It doesnt answer cards such as Solitude or enemy Ragavans though, so youll want to be careful when you board it in
Creature - Phoenix Bloodbraid Elf Haste (This creature can attack and as soon as it comes under your control.) Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less