XLNIxalan

Temple of Aclazotz [flip]

Arguel's Blood Fast [flip]

Temple of Aclazotz from Ixalan Arguel's Blood Fast from Ixalan
Temple of Aclazotz from Ixalan

Legendary Land   

(Transforms from Arguel's Blood Fast.) {T}: Add {B} to your mana pool. {T}, Sacrifice a creature: You gain life equal to the sacrificed creature's toughness.

. . . to the lost temple of a bat-god of night, eternal enemy to the Threefold Sun. 23—24 September 2017

090b Prerelease XLN ★ ENDaarken

Legal in: Pioneer,Modern,Legacy,Vintage,Commander

Oracle Text (click to copy):
9/29/2017
Once you’ve announced the last ability of Temple of Aclazotz, it’s too late for anyone to interrupt you by trying to remove the creature you sacrifice.
9/29/2017
For the last ability of Temple of Aclazotz, use the creature’s toughness as it last existed on the battlefield to determine how much life you gain.

Card Temple of Aclazotz is not on TCGPlayer.

Legendary Enchantment   {1}{B} (CMC:2)

{1}{B}, Pay 2 life: Draw a card. At the beginning of your upkeep, if you have 5 or less life, you may transform Arguel's Blood Fast.

Arguel's vision led him into the jungles of Ixalan . . . 23—24 September 2017

090a Prerelease XLN ★ ENDaarken

Legal in: Pioneer,Modern,Legacy,Vintage,Commander

Oracle Text (click to copy):
9/29/2017
If your life total is 6 or greater as your upkeep begins, the second ability of Arguel’s Blood Fast won’t trigger. You can’t take any actions during your turn before your upkeep begins.
9/29/2017
If your life total is 6 or greater as the second ability of Arguel’s Blood Fast tries to resolve, it won’t do anything.
9/29/2017
For more information on double-faced cards, see the Ixalan mechanics article (http://magic.wizards.com/en/articles/archive/feature/ixalan-mechanics).

Card Arguel's Blood Fast is not on TCGPlayer.