When a player warps a spell, they still cast it for a reduced cost, but the card goes on the stack and resolves if it isnt countered
If a planeswalkers loyalty is 0, its put into its owners graveyard
He has a perme effect that captures not only the "activation of cards" of spells, traps, and monsters, but also the "activation of effects", and even with a link equipped with a needle, his ATK will rise to 3750 with the effect of (2), so you can defeat him without consuming it
So by the time you cast Sami, be prepared to follow up with multiple powerful artifacts
Scythecat CubScythecat Cub One of the best landfall enablers of all time, this card debuted in Foundations Jumpstart and immediately became one of the most valuable cards from that set (currently worth over $30)