Sigarda's Aid [Eldritch Moon Prerelease Promos] Elf Advisor Leviathan can't attack unless you

Leviathan can't attack unless you sacrifice two Islands

*King Lear*

Set: Lorwyn Type: Creature — Merfolk Wizard Rarity: Rare Cost: {4}{U}{U} Champion a Merfolk (When this enters the battlefield

If it shares a creature type with Leaf-Crowned Elder

that opponent discards a card

Sigarda's Aid [Eldritch Moon Prerelease Promos] Elf Advisor Leviathan can't attack unless youSet: Eldritch Moon Prerelease Promos Type: Enchantment Rarity: Rare Cost: {W} You may cast Aura and Equipment spells as though they had flash. Whenever an Equipment enters the battlefield under your control, you may attach it to target creature you control. The Order of Saint Traft found new strength with Sigarda's support.