Diabolic Dilutor

Deathtouch
At the beginning of your upkeep, you may
sacrifice a swamp. If you do, choose a keyword
ability of a creature you control. All creatures
you control have that ability until end of turn.
Then, you may choose a creature you control.
It gains all other keyword abilities among other
creatures you control until end of turn.
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"Antics won't save a soul as unimportant as the rest
in all thesee tombs."