Summoning Sickness

[Kingdom Xathers]

Summoning Sickness

Spell/Continuous

The activation and effect(s) of an Effect Monster are negated during the turn it is Summoned. You must pay 500 Life Points during each of your Standby Phases (this is not option); otherwise, destroy this card.

[Medivh]

Technically it is an option if you don't pay and it's destroyed...


Summoning Sickness
Spell/Continuous
The activation and effect(s) of an Effect Monster are negated during the turn it is Summoned. [b]You must pay 500 Life Points during each of your Standby Phases (This is not optional).[/b]

Pretty sure that's right.

[Airride]

It looks like it could be abused like Imperial order if you have to pay or kill on YOUR turn. Make it your opponents standby.

[Lonk]

...It isn't really summon sickness. If it were summon sickness, then the summoned monster would not be able to attack on the turn it was summoned in addition to being unable to use its effect..