Each noncreature artifact loses all abilities and becomes an artifact creature with power and toughness each equal to its mana value. If Titania's Song leaves the battlefield, this effect continues until end of turn.
Sand Silos enters tapped.You may choose not to untap Sand Silos during your untap step.At the beginning of your upkeep, if Sand Silos is tapped, put a storage counter on it., Remove any number of storage counters from Sand Silos: Add for each storage counter removed this way.
Bottomless Vault enters tapped.You may choose not to untap Bottomless Vault during your untap step.At the beginning of your upkeep, if Bottomless Vault is tapped, put a storage counter on it., Remove any number of storage counters from Bottomless Vault: Add for each storage counter removed this way.
Icatian Store enters tapped.You may choose not to untap Icatian Store during your untap step.At the beginning of your upkeep, if Icatian Store is tapped, put a storage counter on it., Remove any number of storage counters from Icatian Store: Add for each storage counter removed this way.
When Time Elemental attacks or blocks, at end of combat, sacrifice it and it deals 5 damage to you., : Return target permanent that isn't enchanted to its owner's hand.
You and target opponent each flip a coin. Mana Clash deals 1 damage to each player whose coin comes up tails. Repeat this process until both players' coins come up heads on the same flip.
, : Untap target artifact an opponent controls and gain control of it until end of turn. It gains haste until end of turn. When you lose control of the artifact, tap it.
Hollow Trees enters tapped.You may choose not to untap Hollow Trees during your untap step.At the beginning of your upkeep, if Hollow Trees is tapped, put a storage counter on it., Remove any number of storage counters from Hollow Trees: Add for each storage counter removed this way.
Flying (This creature can't be blocked except by creatures with flying or reach.)Nightmare's power and toughness are each equal to the number of Swamps you control.
