When you proliferate, you can choose any permanent that has a counter, including ones controlled by opponents
How To Determine A Card's Rarity In Magic: The Gathering Except for very old cards, the rarity of each Magic card is clearly marked on its face
Any power- or toughness-setting effects that start to apply afterward will overwrite this effect
and living weapon mechanic: on ETB, the equipment creates a 1/1 token and then auto-attaches itself to said token
And you can already see that that devotion and willingness to spend money on an IP will transition perfectly to Magic, from the way Amazon preorders sold out in seconds, with people spending $210 on one box of play boosters - surely way more than they'll cost upon release
Sometimes it's better to keep Kida for later and ink an extra three or four-cost card, rather than automatically treat her like ink