Rewards" page on the official site:
"The Spectral Garden is the pinnacle of HEX card collection, plain and simple. We spent a lot of time making sure the total package for this would be perfect, because we knew we wanted a seriously awesome reward for the true TCG fans that are going to kickstart us at this tier."Do you think this is a coincidence? For those of you who do not know, Black Lotus is the most valuable Magic card ever printed in a set (often reaching over $3,000 a piece). Every deck can benefit from 4x Black Lotus, and Cryptozoic designed Spectral Lotus to be the same way. From the very beginning, the most powerful card in both games is a zero cost artifact "lotus" that gives you 3 resources; I find it kind of sentimental!
Spectral Lotus isn't without flaws (potentially anyway). Since the lotus permanently turns into a different card, you can't recur it from your graveyard and your willingness to play the card may depend on whether or not you can afford a replacement. Negatives aside, Spectral Lotus is still way better than Black Lotus. It's free to cast and replaces itself (so it's always worth playing). Upon use you get a free creature (Black Tiger a reference to WoW TCG's Spectral Tiger) which you can cast using the 3 threshold you just got, then the tiger can draw you another free card. If you don't want to use the Lotus's ability it still may be worth including in an artifact deck. Since the lotus lets you draw a card when it enters play, it's essentially a free artifact to synergize with artifact dependent cards. Spectral Lotus is unjustifiably good, completely overpowered, and you will want 4 in every PvE deck.
Might of Old Krosa and Vines of Vastwood, but HEX has Magic beat with Wild Growth in terms of power level. These cards are both offensive and defensive, usually best when used as a surprise in combat so your creature lives and your opponent's creatures die.