Nidorina

When Nidorina is declared as an attacker or a blocker, choose one.
Poison Fang: Nidorina gets +3/+0 until end of
turn.
{b} Toxic (attach an enchantment aura token which says "enchanted creature gets -0/-2. Other Auras cannot be attached to this creature." to target creature blocking or blocked by Nidorina)
Helping Hand: target other attacking or blocking beast you control gets +2/+0 until end of turn