Do you cast the gifts during your turn or is this during the end of turn step off your opponent? (off relevance in the dragon example)
What does your graveyard look like? is it empty or has it all sort off goodies (important for fetching restricted goodies/will)...
What is the board position off your various opponents? does the 5/3 player for instance only has a trini or also a clock out? (this is minor importance though because you already listed the important things)
If I can get that info I will hopefully be able to answer the question...
