Most played cards in Mono-Blue Eldrazi:

1 Decks
Shrine of the Forsaken Gods
4 copies - 4 average
Hedron Archive
4 copies - 4 average
Spatial Contortion
4 copies - 4 average
Mage-Ring Network
4 copies - 4 average
Clash of Wills
4 copies - 4 average
Engulf the Shore
3 copies - 3 average
Reality Smasher
3 copies - 3 average
Spell Shrivel
3 copies - 3 average
Ulamog, the Ceaseless Hunger
3 copies - 3 average
Anticipate
3 copies - 3 average
Unsubstantiate
2 copies - 2 average
Warping Wail
2 copies - 2 average
Titan's Presence
2 copies - 2 average
Negate
2 copies - 2 average
Thought-Knot Seer
2 copies - 2 average
Summary Dismissal
2 copies - 2 average
Drowner of Hope
2 copies - 2 average
Shivan Reef
2 copies - 2 average
Jace, Unraveler of Secrets
2 copies - 2 average
Epiphany at the Drownyard
2 copies - 2 average