Hal and Alena

Whenever a non-token creature you control dies, investigate.
{1}{u}, Sacrifice a Clue: Tap target creature, it
doesn't untap during its controller's next untap
step.
{1}{g}, Sacrifice a Clue: Deal 3 damage to target creature with flying.
{1}{u}{g}, Sacrifice a Clue: Counter target activated
or triggered ability.