During each of your Standby Phases: Special Summon 1 "Slime Token" (Aqua-Type/WATER/LEVEL 1/ATK 500/DEF 500) in Attack Position. You cannot Summon any monsters, except "Slime Tokens" (but you can Set).
Rulings
Individual Card FAQs
If you have two "Jam Breeding Machines" on your side of the field you cannot Summon any monsters, even Slime Tokens.
You may Set monsters when you have this card active on your side of the field, but you cannot Flip Summon them.
You may Summon a monster and then activate this card.
You cannot activate "Scapegoat" if you have this card active on your side of the field.
If the effect of "Cyber Jar" is activated when you have this card active on your side of the field, monsters that you pick up which could normally be Summoned by the effect of "Cyber Jar" are destroyed instead. Other monsters, such as Level 5 and above monsters, and monsters that can only be Special Summoned, are still added to your hand.
Spell|
Continuous