mtg green card draw enchantment Keen Sense you may draw a card. Top 12 MTG Best Green

Note that if a spell had no other effect except to draw you one card (such as Reach Through Mists), then it would not provide card advantage

If the triggered ability can't determine the information it needs, or if it can't find the objects it expects to find in certain zones, those parts of the effect just do nothing

2019-01-25 If an effect allows a player to cast a spell without paying its mana cost, that player cant choose to cast it and pay its mana cost unless another rule or effect allows that player to cast it that way

Tireless Tracker and Elmar, Ulvenwald Informant can give you the Clue tokens needed for the time lord doctors ability