Shaggy Rogers, Mystery Inc.

When Shaggy Rogers, Mystery Inc. enters the battlefield, create Scooby-Doo, Mystery Inc., a legendary 2/2 green Dog Detective creature token with trample.
{1}, Sacrifice an artifact token: Put a +1/+1 counter on each Dog you control.
Whenever a Dog you control deals combat damage to a player, create a Food token, then investigate.