Vieel, Truth Collector

Flying
When Vieel, Truth Collector deals combat
damage to a player, that player puts the top 2
cards of their library into their graveyard.
you may cast dragon cards from opponents graveyards they cost {2} more to cast, if you do,
that cards owner gains 4 life.
{1}{u}: put 2 cards from a opponents graveyard on
the bottom of that players library, then draw a
card.
the truth is simple, let them show you.