Arcane Signet

T: Add C. T: Add one mana of any color. Spend this mana only to cast your second spell in a turn. When that mana is spent, create a Deep Dish Pizza token. (It's a Food artifact with "3, T, Sacrifice this token: You gain 3 life and draw a card.")

First strike, menace, trample Partner (You can have two commanders if both have partner.)

Flying Whenever this creature or another Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control. R: This creature gets +1/+0 until end of turn.

T: Add W.

When Sokka enters, discard up to two cards, then draw that many cards. Whenever you cast an artifact or Lesson spell, put a +1/+1 counter on Sokka.

Eminence — As long as The Ur-Dragon is in the command zone or on the battlefield, other Dragon spells you cast cost 1 less to cast. Flying Whenever one or more Dragons you control attack, draw that many cards, then you may put a permanent card from your hand onto the battlefield.

When J. Jonah Jameson enters, suspect up to one target creature. (A suspected creature has menace and can't block.) Whenever a creature you control with menace attacks, create a Treasure token.

+2: Creatures you control with flying get +1/+1 until end of turn. −3: Create a 4/4 white Angel creature token with flying and vigilance. −6: You get an emblem with "If you control a creature, damage that would reduce your life total to less than 1 reduces it to 1 instead."