Trickerion: Legends of Illusion

No — you do not have to meet a Trick’s Component requirements to learn it; you only need to meet (or pay the difference for) its Fame Threshold and pick a die/category (p.13).

No — you may buy +1 Action Point with a Trickerion Shard when placing a Character at any Location except the Theater; the Theater explicitly forbids the ‘Enhance Character’ option (pp.12, 16).

No — a placed Character’s Action Points must be spent immediately on one or more Actions at that Location and cannot be saved for later (p.12).

Order (1 AP) places a Component into the Order area so it arrives in the Buy area next turn during 'Orders Arrive', while Quick Order (2 AP) puts a Component into the Market Row stock this turn (available to buy by anyone) but it costs +1 Coin and is returned to the supply at end of turn (p.14).

Every player with at least one Trick Marker on the Performance receives the Yields (Fame, Coins, Shards) for their own Trick cards represented on that Performance card (p.17).

Yield modifiers apply to a player’s Tricks regardless of whether their Magician is present; Thursday subtracts 1 Fame/Coin and Sunday adds 1 Fame/Coin to each performed Trick (never below 0), and this applies even when your Tricks are part of another player's Performance (p.17).