Most played cards in Sidisi, Brood Tyrant:

3 Decks
Boreal Druid
3 copies - 1 average
Deathrite Shaman
3 copies - 1 average
Elves of Deep Shadow
3 copies - 1 average
Elvish Mystic
3 copies - 1 average
Bloodghast
3 copies - 1 average
Woodland Cemetery
3 copies - 1 average
Watery Grave
3 copies - 1 average
Windswept Heath
3 copies - 1 average
Wooded Foothills
3 copies - 1 average
Birds of Paradise
3 copies - 1 average
Fyndhorn Elves
3 copies - 1 average
True-Name Nemesis
3 copies - 1 average
Scavenging Ooze
3 copies - 1 average
Bayou
3 copies - 1 average
Vengevine
3 copies - 1 average
Green Sun's Zenith
3 copies - 1 average
Prized Amalgam
3 copies - 1 average
Llanowar Elves
3 copies - 1 average
Urborg, Tomb of Yawgmoth
3 copies - 1 average
Gilded Goose
3 copies - 1 average