When Zegana enters, if you control another creature with a +1/+1 counter on it, draw a card.
: Adapt 4. (If this creature has no +1/+1 counters on it, put four +1/+1 counters on it.)
Each creature you control with a +1/+1 counter on it has trample.
Zegana, Utopian Speaker anchors a Simic +1/+1 counters deck that grows a wide board of creatures and pushes lethal trample damage through blockers. Early turns develop counter-generating creatures and ramp, then Zegana arrives drawing a card and turning every counter creature into a trampler. Mid-game you snowball with proliferate and counter doublers, and close by swinging out with oversized, unblockable-in-practice attackers.
Free card draw on entry and a built-in mana sink via Adapt 4
Granting trample to your whole counter-based board makes blocking nearly useless
Simic offers the format's best ramp, card advantage, and counter synergies
Resilient, go-wide-and-tall strategy that grinds well in multiplayer
Board wipes can devastate the counter-creature base in one card
Relies on having other counter creatures to maximize Zegana's draw and trample anthem
No built-in evasion beyond trample, so fliers and high-toughness walls slow you down
Lacks interaction in the command zone; main deck must supply removal and protection