urza cards mtg Lord High Artificer Proxy Card The Brothers War (BRO) #296 Illustrated by Cosmin Podar Magic Karn, Scion of Urza -

If Gau is no longer on the battlefield when its last ability resolves, use its power as it last existed on the battlefield to determine how much damage the ability deals

The question is, how relevant is that, given the cards we can go fetch Lessons with

Valakut Awakening Sometimes, you need more mana sources to cast your spells

I like that Wizards played into the flavor of Kamigawa and the nature of some of the more whimsical monsters there and made this a Spirit Dragon

The whole point of Goblin decks (usually) is to produce a ton of Goblins, either through mana acceleration, token generation or any other broken synergies and then swing in for lethal damage immediately thanks to haste-giving Goblin lords (such as Goblin Warchief or Goblin Chieftain)