Sleight of Mind

Change the text of target spell or permanent by replacing all instances of one color word with another. (For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)

Air Elemental

Glasses of Urza

Mana Short

Tap all lands target player controls and that player loses all unspent mana.

Howl from Beyond

Target creature gets +X/+0 until end of turn.

Word of Command

Look at target opponent's hand and choose a card from it. You control that player until Word of Command finishes resolving. The player plays that card if able. While doing so, the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card. If the chosen card is cast as a spell, you control the player while that spell is resolving.

Island

Evil Presence

Fear

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)

Gloom

White spells cost {3} more to cast.
Activated abilities of white enchantments cost {3} more to activate.

Wall of Air

Defender, flying (This creature can't attack, and it can block creatures with flying.)

Swamp

Hypnotic Specter

Flying
Whenever Hypnotic Specter deals damage to an opponent, that player discards a card at random.