Equipped creature gets +1/+0.
When equipped creature deals combat damage to a player, unattach Elbrus, then transform it.
Equip

Large Aberration, Challenge 14
Armor class 10, Hit Points 210
Speed 5 ft., swim 10 ft.
Attacks Innate Spellcasting (Psionics), Tentacle, Mind Blasts, Psychic Link, Sense Thoughts
STR 15 (+2) DEX 10 (+0) CON 20 (+5)
INT 21 (+5) WIS 19 (+4) CHA 24 (+7)

Flash
Emerge
When you cast this spell, tap up to four target permanents.

Flying, vigilance

Choose three. You may choose the same mode more than once.
• Target creature gets +3/-3 until end of turn.
• Exile target nonland permanent, then return it to the battlefield tapped under its owner's control.
• Create a 1/1 colorless Eldrazi Scion creature token with "Sacrifice this token: Add ."

Enchant creature
Enchanted creature gets +10/+10 and has trample and annihilator 2.

Names — Eldrazi / Guacamole / Tightrope
Art — "Alert!" / Magician hat / Magic card
2 — Haste
5 — You may cast this card from your graveyard by paying 2 life in addition to paying its other costs.
2 — 1/4
3 — 5/3

Whenever another colorless creature you control enters, you may change this creature's base power and toughness to that creature's power and toughness until end of turn.

Creatures you control get +1/+1 and have flying and indestructible.
At the beginning of your upkeep, sacrifice a creature. If you can't, sacrifice this artifact.

Annihilator 1
Sacrifice two Eldrazi: Return this card from your graveyard to your hand.
Cycling

Sacrifice this creature: Add .

Sacrifice this creature: Add .

: Add .
: Add . Spend this mana only to cast colorless Eldrazi spells or activate abilities of colorless Eldrazi.

Target creature you control gains protection from each color until end of turn.
Overload

When this creature enters, you get (three energy counters).
Pay : This creature gets +X/+X until end of turn, where X is its power.

This land enters tapped.
When this land enters, surveil 1.

Names — Elemental / Time / Flamingo
Art — Sunglasses / Brain / "Presenting ..."
2 — Exile this permanent: You may cast target nonland card from your graveyard this turn.
4 — Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.
2 — 1/5
3 — 5/4

Whenever you cast a spell with in its mana cost, put two charge counters on this artifact.
: Add one mana of any color.
: Add for each charge counter on this artifact. Spend this mana only on costs that contain .

: Add .
: Regenerate target Elephant.

, Sacrifice this creature: Destroy target enchantment.