Does Carnivorous Snapvine's 'When you play me' effect trigger when playing the unit from hand, or when moving it to a battlefield?

Ruling: The 'When you play me' effect triggers when you play the unit from your hand onto the board. Moving a unit is not the same as playing it.

Sequence:

• Play the unit from your hand
• The permanent comes onto the board
• The 'When you play me' effect triggers

Nuances:

• Moving a unit to a different location does not count as playing it and will not trigger 'When you play me' effects