1) Let's say I'm performing a 2 dice test with up to three rerolls (from separate sources). Can I reroll two dice and then take my third reroll if I fail with the first two? Or am I capped at two rerolls total since I was only throwing two dice for the test?
2) If I have 4 clues and fail a test, can I spend the clues one at a time to see if I succeed? E.g. spend a clue to reroll and fail, then spend a second clue to reroll another die and succeed?
Do note though that if your reroll effect is an effect that tells you you can reroll up to 3 dice, then you can't reroll both die of a 2-die roll, then reroll 1 die if you fail with the first two. You can only do a third reroll after the first 2 if the rerolls are from separate effects or items (say 1 item that allows you to reroll up to 2 die and 1 item that allows you to reroll 1 die, or 3 items that allow you to reroll 1 die)