Auntie Flint, Spiderwigger

When Auntie Flint enters the battlefield, you
may pay {x}. If you do, put out X number of 1/2 green spiders with reach and defender.
Sacrifice a spider: Put two 1/1 counters on target creature you control.
Pact (You can have two commanders if both have pact. If the two commanders share a creature type, they cost {x} less to cast, where X is number of times the commander's been cast.)