Sobek, Crokolisk Lord

+3: Target creature you control gets +1/+1, all creatures you control gain vigilance and forestwalk
-5: All creatures you control gain lifelink until end of turn, any life gained this way is also a +1/+1 counter for all creatures you control
-10: You get 15 life for each forest you control, creatures you control get +5/+5 for each swamp you control