mtg deadpool commander deck Box, Full Art Card Case the infamous Merc with a Mouth MtG Commander Deckbox (double-sleeved) -

when we have delirium (four or more card types in our graveyard), it's a 2/2 double strike for only two-mana, which makes it extremely powerful

Noctis Lucis Caelum You dont need to be rainbow for Kenrith, the Returned King to be good, as even just being WU makes this a great mana sink

Then you can kill with the commander in 4 hits instead of 5 with this power boost

The cards here are more broadly useful, too, so I could see this being the most popular of the three drops by far

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.) Whenever this creature attacks for the first time each turn, if it's attacking the player with the most life or tied for most life, untap all attacking creatures