Taniwha 
Legendary Creature — Serpent
$5.80 #14411 0.29 29.9 years
Trample
Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)
At the beginning of your upkeep, all lands you control phase out. (They phase in before you untap during your next untap step.)
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Cards similar to Taniwha expected a card that isn't here?
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Sandbar Crocodile100%
$0.10↓#29634↓0.3829.9 years
"Phasing"
Breezekeeper100%
$0.11↓#30759↓0.64↑29.6 years
"Phasing"
Merfolk Raiders100%
$0.24↓#28369↓0.47↑29.9 years
"Phasing"
Teferi's Drake100%
$0.13↓#29866↓0.00↓29.9 years
"Phasing"
Tolarian Drake100%
$0.12↓#31070↓0.12↓29.2 years
"Phasing"
Shimmering Efreet94%
$0.21↓#27640↓0.57↑29.6 years
"Phasing"
+1 more matching line
Teferi's Isle94%
$11.57↑#17879↓0.13↓29.9 years
"Phasing"
Warping Wurm92%
$0.62↓#31450↓0.1929.9 years
"Phasing"
+1 more matching line
Teferi's Imp91%
$0.98↓#29040↓0.10↓29.9 years
"Phasing"
+1 more matching line
Crystal Golem88%
$0.25↓#28334↓0.3329.9 years
"At the beginning of your end step, this creature phases out."
Ertai's Familiar88%
$0.83↓#28036↓0.2729.2 years
"Phasing"
+1 more matching line
Vaporous Djinn85%
$0.12↓#31682↓0.00↓29.9 years
"At the beginning of your upkeep, this creature phases out unless you pay ."
."
Katabatic Winds85%
$0.99↓#26505↓0.57↑29.6 years
"Phasing"
Haystack80%
$0.36↓#4900↑0.14↓2.2 years↓
"
, 
: Target creature you control phases out."
, : Target creature you control phases out."
Rainbow Efreet79%
$0.97↓#28632↓0.3329.6 years
": This creature phases out."
: This creature phases out."
Shimmer78%
$7.23↑#23699↓1.13↑29.9 years
"Each land of the chosen type has phasing."
Slip Out the Back78%
$3.83↓#1094↑0.254.4 years↓
"Put a +1/+1 counter on target creature. It phases out."
Iwamori of the Open Fist77%
$0.09↓#23664↓0.2421.6 years↓
"Trample"
Vodalian Illusionist76%
$0.32↓#17687↓0.13↓29.2 years
", : Target creature phases out."
, : Target creature phases out."
Teferi's Veil75%
$1.05↓#11402↑0.2929.2 years
"Whenever a creature you control attacks, it phases out at end of combat."