Topdecking is extremely dangerous as you could hit the wrong effect and ruin your entire strategy, so be careful
For starters, if our Commander is out, then shes tapping down Emmara with her ability to pump an enemy creature and goad them
When it is Xyz Summoned: You can target 1 Special Summoned monster your opponent controls
Against certain Decks, this ability can be powerful enough to end the entire game, as they won't be able to recover from losing their key cards from their Field and Graveyard.
Aurora - Briar Rose is a Common Character card from the Lorcana set The First Chapter
(And no, being clever and saying that your 61st card is a land or a one-drop to circumvent this exact example doesn't count.) Every draw step, you're just taking a tiny chance you'll draw something weaker than the strongest cards in your deck