Deadly Ambush

For each mana spent to cast this, do both:
• Create a 1/1 green Elf creature token.
• Up to 1 target creature explores.
• Put a -1/-1 counter on up to 1 target.
For each 2 life spent to cast this, surveil 1.
Cycling {b/g} - Any target gets -1/-1 this turn.