This X dictates how large of a non-human creature you can tutor out into play, making for a great mono-green creature tutor
Playing conservatively, this will let you refill your hand at the end of every turn
Like most Magic: The Gathering cards, the value of Dragonologist depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Tarkir: Dragonstorm)
Blink Blink Dog Blink of an Eye Blinking Spirit Blinkmoth Infusion Blinkmoth Nexus Blinkmoth Urn Blinkmoth Well Don't Blink Momentary Blink Unblinking Bleb Unblinking Observer
Youll generally want your mana curve to be a bell curve of sorts, with a few one- and two-mana spells, a higher concentration of three- to four-drops, and then a few cards that cost five or more