The second, while afflicted with the dreaded once per turn clause, is also a great way of building board presence as you shenaniganize elsewhere
Just about every MTG set has a red sorcery that does one damage to each creature an opponent (or every opponent) controls - with an equipped Ghyrson on the board, that becomes a one-sided board sweeper (indestructible creatures, and creatures with protection from red or blue not withstanding)
Its also three colors, so it triggers Omnaths ability to make you some extra mana
If setting up lots of mana to win isnt your thing, Kess, Dissident Mage can simply win you the game on the spot by having Intuition fetch up Thassas Oracle, Demonic Consultation, and Reanimate, and its hardly the only commander with access to these kinds of shenanigans
If they cast a creatures thats 3/3 or smaller, you have a choice you can either use Okos second ability to go up to seven loyalty and turn your Food token into a creature that beats or trades with theirs in combat, or you can use Okos third ability to give your opponent your Food and take their creature, leaving your Oko at one loyalty, and then you also get to cast another spell