Its low cost and room-activation options make it useful early on or for things like Eerie triggers, but dont expect it to dominate outside of those niche scenarios
For the longest time (basically until Counterspell was printed in Modern), Thoughtseize, and to a lesser extent Inquisition of Kozilek, were the only major universal disruption spells in Modern
(They're artifacts with " , , Sacrifice this token: You gain 3 life.") Sacrifice a Food: Until end of turn, target creature you control assigns combat damage equal to its toughness rather than its power
Access to tutors means those creatures can go right into your hand, or even better, straight to the field
Read Descriptions Carefully: Always read the listing description thoroughly