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Rikku, Resourceful Guardian allows you to force a creature through your opponents' blockers, as well as steal counters, and Lulu, Stern Guardian protects you by putting stun counters on your opponents creatures, as well as proliferating to keep them around

This deck crushed

Instead, I want to focus on a huge new addition to the deck, the reason we are revisiting the archetype today, the card that just might make Gates the literal best deck in Historic: Spelunking

The Impending cost allows you to cast the spell earlier and get its enter the battlefield effect, but it won't be able to attack until it becomes a creature when you've removed all time counters from it