mtg outlaws of thunder junction most expensive cards Magic: The Gathering Commander Deck Top 10 Most Expensive Outlaws

The sideboard is also the only place you can pull cards from outside the game usually when a Wish or similar effect resolves

So if your plan is to dump out ramp to 8 mana and then have indestructible creatures there, that's a pretty long term plan

That said, this does nothing to setup things like Shelldock Isle so it isn't all perks

Each of these Stranger Things Secret Lair cards is easy to find on TCGplayer for under $10 each, but Wizards did something interesting with the approach to this drop

The creature stays tapped if its already tapped from attacking or activating an ability and wont untap when the new creature is put on top of the merged pile