mtg cards that ignore legendary rule Copying Creatures | Respect the Tech Ep.1 Do we get to keep

Also, the fact that soulbond creatures can pair not just when they enter the battlefield but when other creatures enter (assuming they aren't paired) makes tracking them tricky

The Master, Multiplied Boy, do I feel silly for not picking up a copy before this cards price spiked

Anything that adds +1/+1 counters en masse could be useful as well

This Phyrexian dragon has infect, an ability that replaces traditional damage with -1/-1 counters when dealing damage to creatures and by giving your opponents poison counters instead of damaging their life total

When this creature dies, create X 1/1 blue Squid creature tokens with islandwalk, where X is the number of +1/+1 counters on this creature