This is thanks to the card's trigger being useful no matter if you're behind or ahead
The reason is simple: Two mana is better than one mana
Blink it once and you've drawn four cards off a single creature
Once your landfull/card draw engine is running (with Tatyova drawing you a huge number of cards as lands keep hitting the battlefield), cards such as Sylvan Awakening, Avenger of Zendikar, Zendikar's Roil, Ominous Seas, and others will provide you with powerful ways to generate creature tokens and overwhelm your opponent
It is recommended for decks that focus on defensive or support strategies
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