What to do with 10 green mana and

Equipped creature gets +3/+2. Whenever this Equipment becomes unattached from a permanent, sacrifice that permanent. Equip (: Attach to target creature you control. Equip only as a sorcery.)

Vigilance As long as Raksha Golden Cub is equipped, Cat creatures you control get +2/+2 and have double strike.

Whenever a creature you control enters, it gets +2/+0 and gains haste until end of turn.

Creatures you control have trample. : This artifact becomes a 4/4 Juggernaut artifact creature until end of turn.

Whenever another creature you control enters, that creature gets +3/+3 until end of turn.

This creature must be blocked by exactly one creature if able. Whenever this creature attacks, create X tokens that are copies of it and that are tapped and attacking, where X is the number of creatures defending player controls. Exile the tokens at the beginning of the next end step.