Sage of Hours [Journey into Nyx] Snake sacrifice it unless you sacrifice

sacrifice it unless you sacrifice three Forests

Set: From the Vault: Dragons Type: Artifact Creature — Dragon Rarity: Rare Cost: {16} Domain — This spell costs {2} less to cast for each basic land type among lands you control

Set: Tempest Type: Artifact Rarity: Rare Cost: {2} Green spells you cast cost {1} less to cast

where X is its mana value

This ability can't cause the total number of +1/+0 counters on Clockwork Beast to be greater than seven

Sage of Hours [Journey into Nyx] Snake sacrifice it unless you sacrificeSet: Journey into Nyx Type: Creature Human Wizard Rarity: Mythic Cost: {1}{U} Heroic Whenever you cast a spell that targets Sage of Hours, put a +1 +1 counter on it. Remove all +1 +1 counters from Sage of Hours: For each five counters removed this way, take an extra turn after this one.