+Delif (2)
, Sacrifice this artifact: This turn, when target creature you control attacks and isn't blocked, you may gain life equal to its power. If you do, it assigns no combat damage this turn.
, : This turn, when target creature you control attacks and isn't blocked, it assigns no combat damage this turn and you put a cube counter on this artifact.
, Remove a cube counter from this artifact: Regenerate target creature.
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, 
: This turn, when target creature you control attacks and isn't blocked, it assigns no combat damage this turn and you put a cube counter on this artifact., Remove a cube counter from this artifact: Regenerate target creature.