mtg cards like silent arbiter Master – @mtg-brokentoken on Tumblr No more than one creature can attack each combat Silent Arbiter | Commander 2020

TypeCreature Bird Bard Collector Number305 Rarityrare ArtistMariah Tekulve Flying You may have this creature enter as a copy of any creature on the battlefield with mana value less than or equal to the amount of mana spent to cast this creature, except it's a Bird in addition to its other types and it has flying

Tocasias Welcome offers similar draw to Welcoming Vampire, but at a more forgiving rate, meaning you can run 3+ power creatures as long as theyre under mana value of 3

You can tap it to cast an artifact from your graveyard

If you're in a Bird Kindred deck you likely won't need this, but it can help your occasional non-flying creature get some damage in

Goldlust Triad: A little spice, as with myriad it will get you more Knuckles triggers, and it makes more treasure too

Those tools have very different feature sets and goals, so depending on what your project is about you will find this or that more useful