The right play is going to depend on the matchup (if they're a very fast deck it could be right to block), your hand (if your next play is a Ghoulraiser and your creature is instead a Walking Corpse, it is excellent to block), and your tribe along with your deck
Certain Pokmon cards stand out as rare due to factors like limited releases, misprints, unique features, and the sheer popularity of the Pokmon franchise
At the start of the battle phase, you can return this card to your hand and summon a level 7 Dragonmaid monster from your hand or graveyard
This Oath of the Gatewatch rare has already topped $5, but a dominant showing in 50% of the Top 8 decks might be enough to push demand up towards $10 as players conceed to the necessity of running three or four copies
Step into a world that crosses dimensions and connects all Duelists
In a modern format like this, where summoning from extra deck is vital for most decks to play, this effect is absolutely devastating