Conversely, trimming a Cube is a matter of eliminating archetypes and redundancies at the higher points of the mana curve, thereby tightening the power band
Arcades the Strategist is worth almost as much at $21, and this is a legendary Elder Dragon that can form a creative defender deck to take opponents by surprise
This can make a huge difference as some cards have a market price of double their actual buying price
Anything that produces 1-2 Energy is providing a fraction of a cards value, so it can go an a card thats slightly underpowered for its mana cost
Adding more value to him is the fact that late in the game you can transform him and either dig for more resources, blow up any creature/planeswalker or recur something from any graveyard
Kasla, the Broken Halo is all about convoke and well, thats just about it