Now, this is something very few cards manage to do consistently
If you plot an instant with Lilah, Undefeated Slickshot, you can cast the plotted instant for free on a later turn, but since it was plotted you'll have to cast it at sorcery speed
You could win the turn after it drops with enough mana out and that static ability
Since they are both at the bottom of the priority list, I can pick which to apply first
Its a bit awkward in that UR spells wants to minimize the creatures it runs, BR and RW are aggressive and dont want the game to go long enough for this to matter, and RG has plenty of mana-hungry werewolves to cast
A new variant of this ability, emerge from artifact, appears in this set