Ziatora's Proving Ground [Streets of New Capenna]

Ziatora's Proving Ground [Streets of New Capenna]Set: Streets of New Capenna Type: Land Swamp Mountain Forest Rarity: Rare ({T}: Add {B}, {R}, or {G}.) Ziatora's Proving Ground enters the battlefield tapped. Cycling {3} ({3}, Discard this card: Draw a card.) Restless Riveteers can always find a sparring partner in the sprawling Treza warehouse.

From the time they are hatchlings

Remove a +1/+1 counter from Triskelavus: Create a 1/1 colorless Triskelavite artifact creature token with flying

Set: Magic 2014 Type: Artifact Rarity: Uncommon Cost: {2} {2}

Set: Double Masters Type: Basic Land — Forest Rarity: Common ({T}: Add {G}

a hydra may rid itself of older ones

Heroic — Whenever you cast a spell that targets Fabled Hero

Set: Modern Masters Type: Legendary Planeswalker — Elspeth Rarity: Mythic Cost: {2}{W}{W} +1: Create a 1/1 white Soldier creature token

What I seek is far greater

Set: Unhinged Type: Creature — Giant Rarity: Uncommon Cost: {1}{R}{R} {R}

you may put a charge counter on Aether Vial

Set: Innistrad: Crimson Vow Type: Legendary Creature — Spirit Rarity: Rare Cost: {W}{U} Flying

then add an additional {U} for each charge counter removed this way