Nontoken artifacts you control are lands in addition to their other types. (They don't gain the ability to for mana.)

At the beginning of your end step, earthbend 2. (Target land you control becomes a 0/0 creature with haste that's still a land. Put two +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped.)

Firebending X, where X is Fire Lord Zuko's power. (Whenever this creature attacks, add X . This mana lasts until end of combat.)

Whenever you cast a spell from exile and whenever a permanent you control enters from exile, put a +1/+1 counter on each creature you control.

Flying, first strike, trample, lifelink, haste

At the beginning of combat on your turn, other Spiders you control gain flying, first strike, trample, lifelink, and haste until end of turn.