Cards like Adeline, Resplendent Cathar and Anim Pakal, Thousandth Moon easily rack up melee triggers in addition to exploiting the additional combat
If the card is coming from a public knowledge zone (such as discard) yes you have to announce which card you are returning
CHARACTERS YOU LOVE Play as Disneys most iconic Villains: Maleficent, Prince John, Ursula, and Captain Hook, and encounter heroes, henchmen and scenes from Disneys Sleeping Beauty, Robin Hood, The Little Mermaid, and Peter Pan
Create a 2/2 green Bird creature token with "Whenever a land you control enters, this token gets +1/+0 until end of turn." If the target is illegal when Choco-Comet tries to resolve, it won't resolve and none of its effects will happen
Thats really all there is to it
Standard is way too fast for this, and Commander has plenty of better options