End of turn effects

[LotusHead]

What effects, if any, can be played "at end of turn" but don't trigger new "at end uf turn" ablilities until the NEXT end of turn?

A Furnace Whelp  being pumped for 3 "at end of turn" of my turn is what is in question.

It is my assumption that End of Turn is part of the clean up stage, and all end of turn triggers will have to well, trigger.  Said Furnace Whelp   will be a 2/2 creature at the beginning of the NEXT turn, no matter WHAT the controller of Furnace Whelp    does.

[Jebus]

I can only assume you meant Furnace Whelp.

The End Phase of a turn is composed of two steps:  The End of Turn Step, and then the Cleanup Step.

Triggered abilities that trigger "At end of turn" trigger at the begging of the End of turn step.

Effects that last "until end of turn" or "this turn" all end during the Cleanup Step.

Furnace Whelp's pump effect wears off during the Cleanup step.  THere is no way to carry this over to the next turn.   Note that there are no "triggers" here.  This is just ending an effect.