Vaporous Djinn
{2}{U}{U}
Creature -- Djinn
3/4
Flying
At the beginning of your upkeep, ~this~ phases out unless you pay {U}{U}. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)
Warping Wurm
{2}{G}{U}
Creature -- Wurm
1/1
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, ~this~ phases out unless you pay {2}{G}{U}.
Whenever ~this~ phases in, put a +1/+1 counter on it.