(1) If the activation of a monster effect that was activated on your field is negated: You can Special Summon this card from your hand
That said, four oil counters is kind of a lot for a creature this big especially because the Archfiend punishes your opponent for losing creatures in play too
Stock Up - Simple and efficient card advantage spell that spellslinger and control decks will utilize for sure
A potential combo you can do to out a Skill Drain is if they already have Eldlich on the field, special summon Faris to get a hero on the field, then normal summon Stratos, activate his effect to pop a back row, then in response to that, sacrifice him with Droplet so that his backrow destruction effect goes off in the graveyard, getting rid of Skill Drain
With the decks ability to generate massive value for free through reanimation and load up on landcyclers to secure land drops, a conventional source of mana ramp simply hasnt proven necessary
Partner 0: Choose target creature