Geology Enthusiast [The Brothers' War] Cat Monkey Leyline Prodigy enters the battlefield

Leyline Prodigy enters the battlefield with an additional loyalty counter on him for each instant and sorcery spell you've cast this turn

you may have that creature assign its combat damage as though it weren't blocked

When Claim Jumper enters the battlefield

Reverse Type: Token Artifact Creature — Golem Haste

its controller reveals cards from the top of their library until an artifact or creature card is revealed and exiles that card

Geology Enthusiast [The Brothers' War] Cat Monkey Leyline Prodigy enters the battlefieldSet: The Brothers' War Type: Creature Human Artificer Rarity: Rare Cost: {3}{U}{U} At the beginning of your end step, create a tapped Powerstone token. (It's an artifact with {T}: Add {C}. This mana can't be spent to cast a nonartifact spell.) {6}: Draw a card and put a +1 +1 counter on Geology Enthusiast.