Most played cards in 4 Color Control:

4 Decks
Sakura-Tribe Elder
15 copies - 3.75 average
Cranial Extraction
14 copies - 3.5 average
Temple Garden
12 copies - 3 average
Loxodon Hierarch
11 copies - 2.75 average
Ivory Mask
9 copies - 2.25 average
Putrefy
9 copies - 2.25 average
Overgrown Tomb
9 copies - 2.25 average
Faith's Fetters
8 copies - 2 average
Kodama's Reach
8 copies - 2 average
Vitu-Ghazi, the City-Tree
8 copies - 2 average
Wrath of God
8 copies - 2 average
Brushland
8 copies - 2 average
8 copies - 2 average
Lightning Helix
8 copies - 2 average
Farseek
8 copies - 2 average
Chord of Calling
8 copies - 2 average
Simic Sky Swallower
8 copies - 2 average
Birds of Paradise
8 copies - 2 average
Creeping Mold
7 copies - 1.75 average
Ghostway
6 copies - 1.5 average