Animar, Soul of Elements | Palinchron

Cards

There are at least five +1/+1 counters on
Animar.You control up to seven untapped lands that can tap for ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .

Activate your lands by tapping them, adding at least ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Cast
Palinchron by paying ({U} magic symbol) ({U} magic symbol) .
Animar triggers, getting a +1/+1 counter.
Palinchron enters the battlefield, triggering itself, untapping up to seven lands.
Pay ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) to
Palinchron, returning it to hand.
Repeat.
If your lands can tap for an additional mana, this combo produces infinite mana.