Biting-Palm Ninja does not have summoning sickness and cannot be blocked by an opponent.
You control up to seven lands that can tap to produce at least .
Steps
1Declare Biting-Palm Ninja as an attacker.
2When it isn't blocked, activate up to seven lands you control by tapping them, adding at least .
3Activate Palinchron's ninjutsu ability by paying and returning Biting-Palm Ninja from the battlefield to your hand, putting Palinchron onto the battlefield from your hand tapped and attacking.
4When Palinchron enters the battlefield, it triggers, untapping up to seven lands.
5Activate Biting-Palm Ninja's ninjutsu ability by paying and returning Palinchron from the battlefield to your hand, putting Biting-Palm Ninja onto the battlefield from your hand tapped and attacking.
6Repeat from step 2.
7If you control up to seven lands that can tap to produce at least , this combo nets infinite mana.