Right, Tower costs 3. I always misremember it as costing 2.
I am pretty hesitant about the Plasmodium + worker + float play. That’s 4 damage to your base and no hope of hitting anything next turn either. Maybe Time Spiral it to get it out a turn sooner? If you don’t, you’re not actually swinging with it until turn 4.
Ugh. The turn 2 play here is then probably not max Vandy. It’s probably midband Vandy (3), build Hero’s Hall (1) worker (0) and swing at base for 5. Then next turn is probably tech 1 (5), worker (4), max Vandy (2), and Garth (0) with teched metamorphosis, and on P1 T4 swing any surviving units, Metamorphosis and fetch a Twilight Baron with Garth, and attack with both heroes.
I’m not sure what defenses P2 can put out on their third turn given that P1’s third turn is likely going to involve swinging a 3/4-or-4/5 and a 3/3. Probably tech Origin Story and try to snipe Vandy on turn 3? But Black is still pretty flexible with this plan.
And worse, they could just completely skip the metamorphosis plan (a very sane choice), build Tech 1 on T2, tech 2x Bone Collector and just begin applying a more standard beatdown. Because probably anything Purple plays on T2 is going to get wiped also if they don’t put down any force projection on turn 1.