Keep in mind that just because someone lists a card for a certain price, doesnt mean that is how much it is actually worth
Felix Five-Boots I put Felix Five-Boots in a category of cards that have great abilities that just need to stay on the battlefield, and adding more saboteur triggers is incredible considering they're difficult to achieve
(Your party is a 3/3 red Fighter with first strike, a 1/1 white Cleric with lifelink, a 2/2 black Rogue with hexproof, and a 1/1 blue Wizard with flying.) How much does Dungeon Master cost
For an affordable (though not cheap) cost, it can become a relevant and hard-to-kill creature
I realize that this sounds a lot like unfair combo decks but the difference is that the mana an unfair combo generates is temporary to produce an instant win where Ramp's advantage is turned into permanents
They are non-Standard cards that can be found in the collector boosters