Captain Rex Nebula - Galaxy Foil Condition:Excellent Whenever a source deals damage

Whenever a source deals damage to Crag Saurian

Wild Mongrel

If you tap a basic land for mana

you may put a +1/+1 counter on Knucklebone Witch

Target player reveals their hand

Captain Rex Nebula - Galaxy Foil Condition:Excellent Whenever a source deals damageCaptain Rex Nebula Legendary Creature Human Pilot Employee At the beginning of combat on your turn, choose target nonland permanent you control. Until end of turn, it becomes a Vehicle artifact with base power and toughness each equal to its mana value, and it gains crew 2 and 'Crash Land Whenever this Vehicle deals damage, roll a six sided die. If the result is equal to this Vehicle's mana value, sacrifice this Vehicle, then it deals that much damage