{1}{W}, {T}: You gain 5 life.

{1}{U}, {T}: Draw a card, then discard a card.

{1}{B}, {T}: Target creature gets -2/-2 until end of turn.

{1}{R}, {T}: Obelisk of Alara deals 3 damage to target player or planeswalker.

{1}{G}, {T}: Target creature gets +4/+4 until end of turn.

{T}: Add {G}, {W}, or {U}.

{T}: Add {W}, {U}, or {B}.

{T}: Add {U}, {B}, or {R}.

{T}: Add {B}, {R}, or {G}.

{T}: Add {R}, {G}, or {W}.

{6}, {T}: Return target permanent you both own and control to your hand.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature’s color.)

As Obelisk of Urd enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +2/+2.

Reach

Whenever Obelisk Spider deals combat damage to a creature, put a -1/-1 counter on that creature.

Whenever you put one or more -1/-1 counters on a creature, each opponent loses 1 life and you gain 1 life.

Obsidian Obelisk enters the battlefield tapped.

{T}: Add {C}.

{T}: Add one mana of any color. Spend this mana only to cast a multicolored spell.

{T}: Add {C}.

{7}, {T}, Sacrifice Unstable Obelisk: Destroy target permanent.