Seal of the Discovered Lexicon

Whenever a player draws a card outside of his or
her draw step, you may pay {x}{u}; where X is the
number of times this ability has triggered this
turn plus 1. If you do, draw a card. Then, if the
drawn card was a land, you may untap target
basic land you control.
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"Knowledge begets knowledge, and knowledge
therein."
- Matteus, the Fabulist