This typically means mana-acceleration effects that will help you produce eleven mana naturally for someone like Ulamog, the Infinite Gyre when you can't bring him to class for Show and Tell
At any rate, the unexpected 925% increase on Tyrant Guard is likely a flash in the pan being manipulated by a single actor, so best to wait and see where the market price ends up settling on this one
There are tons of great new cards in this deck, like "backup commander" Marneus CalgarMarneus Calgar, the angelic Celestine, the Living SaintCelestine, the Living Saint, and even the helicopter-parent-esque Vexilus PraetorVexilus Praetor
That card is absurd
The popular consensus is that after some speculators jumped ship from Pokmon to One Piece late last year and caused prices to skyrocket, other speculators started trying to guess what the next big game would be
(Whenever you cast an enchantment card from your hand, exile cards from the top of your library until you exile a nonland card that costs less