Onslaught block, comprising Onslaught, Legions, and Scourge, has 12 preconstructed theme decks, of which three are monocolored, 8 are bicolored, and one is tricolored.
Onslaught theme decks featured a new box design that readily displayed the decks' colors.
Onslaught[ | ]
| Theme deck name |
Colors Included | ||||
|---|---|---|---|---|---|
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| Bait & Switch | U | B | |||
| Celestial Assault | W | U | |||
| Devastation | R | G | |||
| Ivory Doom | W | B | |||
Legions[ | ]
| Theme deck name |
Colors Included | ||||
|---|---|---|---|---|---|
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| Elvish Rage | G | ||||
| Morph Mayhem | W | U | |||
| Sliver Shivers | W | U | G | ||
| Zombies Unleashed | B | ||||
Scourge[ | ]
| Theme deck name |
Colors Included | ||||
|---|---|---|---|---|---|
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| Goblin Mob | R | ||||
| Max Attax | B | G | |||
| Pulverize | U | R | |||
| Storm Surge | W | U | |||