Not a pathetic little meditation plane, we're talking Phyrexia here)
The first two chapters of this saga are good enough at 3 mana, creating a creature with the possibility of ramping you and letting you pitch two cards for some draw
It also prevents rules-breaking orders (which would be avoided in the effect selection process anyhow, but this way the effort is less manual) and can be used to limit the power of a fully-escalated card (though I won't be surprised if they never used this option, because the goal of combining effects is to combo excitingly)
You can't argue with that fact, and both received the updated book subtype
[8] For the very first turn of the game, there wont be anything to do during the Refresh phase
Tezzeret, the Conspirator has a casting cost of two generic, one blue, and one black mana, enters the battlefield with five loyalty counters and has the following abilities (credit for ability translation goes to reddit user jack651411): +1: Create a colorless artifact token named "Etherium Stone," which has "Tap: Sacrifice this and add one mana of any color into your mana pool"