Enchant artifact or creature
As long as enchanted permanent is a creature, it gets +1/+1 for each creature and/or Vehicle you control.
Channel — {2}{W}, Discard Born to Drive: Create two 1/1 colorless Pilot creature tokens with "This creature crews Vehicles as though its power were 2 greater."
Discarding the card is part of the cost to activate a channel ability.
If a channel ability requires a target, you may not activate it without a target just to discard the card.