viper,destroyer of worlds

+3: target 3 lands or basic lands,these then get a conquered counter(enters your battlefield under your control)
-2: nest 3(pick 3 land under your control, they gain the ability to create a 2/2 snake every turn with " this card get +1/+1 every turn.
-10: you get an emblem: all snakes you control get +5/+5 and trample, life link, death touch, indestructible.