Jumbo Imp [Unglued] 143a it's affected by summoning sickness

it's affected by summoning sickness

Set: Fate Reforged Prerelease Promos Type: Instant Rarity: Rare Cost: {X}{W}{W} Return each creature card with mana value X or less from your graveyard to the battlefield

It''s also said that when the three are together

Set: Gym Challenge 1st Edition Type: Fire Rarity: Uncommon

Jumbo Imp [Unglued] 143a it's affected by summoning sicknessSet: Unglued Type: Creature Imp Rarity: Uncommon Cost: {2}{B} Flying As Jumbo Imp enters the battlefield, roll a six sided die. Jumbo Imp enters the battlefield with a number of +1 +1 counters on it equal to the result. At the beginning of your upkeep, roll a six sided die and put a number of +1 +1 counters on Jumbo Imp equal to the result. At the beginning of your end step, roll a six sided die and remove a number of +1 +1 counters from Jumbo Imp