Eluge's power and toughness are each equal to the number of Islands you control. Whenever Eluge enters or attacks, put a flood counter on target land. It's an Island in addition to its other types for as long as it has a flood counter on it. The first instant or sorcery spell you cast each turn costs {U} (or {1}) less to cast for each land you control with a flood counter on it.

Whenever you cast your first spell during each opponent's turn, you may tap or untap target nonland permanent.

Flying When this creature enters, draw a card, then discard a card.

Whenever you cast your first spell during each opponent's turn, draw a card.

Flying When this creature enters, target opponent mills five cards. You may cast an instant or sorcery spell from among them without paying its mana cost.

Any player may cast spells as though they had flash. Your opponents can't cast spells during your turn.