Crackleburr — ruling 1

If the permanent is already untapped, you can't activate its {Q} ability. That's because you can't pay the "Untap this permanent" cost.

Crackleburr — ruling 2

The "summoning sickness" rule applies to {Q}. If a creature with an {Q} ability hasn't been under your control since your most recent turn began, you can't activate that ability. Ignore this rule if the creature also has haste.

Crackleburr — ruling 3

When you activate an {Q} ability, you untap the creature with that ability as a cost. The untap can't be responded to. (The actual ability can be responded to, of course.)

Crackleburr — ruling 4

To activate either ability, you'll need Crackleburr plus two other creatures. Crackleburr must have been under your control since your most recent turn began (or have haste), but the other two creatures don't.

Crackleburr : règles, fonctionnement et interactions (MTG)

Crackleburr is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

, , Tap two untapped red creatures you control: This creature deals 3 damage to any target. , , Untap two tapped blue creatures you control: Return target creature to its owner's hand. ( is the untap symbol.)

How it works : Crackleburr

Original English text — Wizards of the Coast / Scryfall

#1August 1, 2008· Wizards of the Coast
If the permanent is already untapped, you can't activate its ability. That's because you can't pay the "Untap this permanent" cost.
No other card is named in this ruling.
#2August 1, 2008· Wizards of the Coast
The "summoning sickness" rule applies to . If a creature with an ability hasn't been under your control since your most recent turn began, you can't activate that ability. Ignore this rule if the creature also has haste.
No other card is named in this ruling.
#3August 1, 2008· Wizards of the Coast
When you activate an ability, you untap the creature with that ability as a cost. The untap can't be responded to. (The actual ability can be responded to, of course.)
No other card is named in this ruling.
#4August 1, 2008· Wizards of the Coast
To activate either ability, you'll need Crackleburr plus two other creatures. Crackleburr must have been under your control since your most recent turn began (or have haste), but the other two creatures don't.
No other card is named in this ruling.