A player offered a villainous choice can always choose either option, even if the effect of that option turns out to not do anything
While likely powerful in Standard, the Stalker will truly shine in the likes of Modern, where regular Fetchland activations can guarantee he beefs up quickly, He also plays nicely with instant-speed tricks, since you can use his activated ability even if he attacked last turn: a nice tip to remember for all formats
There have been some fringe archetypes created with Solgaleo-GX as a driving force, such as Russell Laparres Tyranitar-GX/Solgaleo-GX and Michael Catrons Solgaleo-GX/Blaziken-GX (expanded) decks
(3/14/2017) If you somehow manage to cast Explore when it's not your turn, you'll draw a card when it resolves, but you won't be able to play a land that turn.
A Digimon cannot be moved to the Battle Area if it hatched that turn.